Spring Constant Bungee Jumping

The simple harmonic motion in a bungee jump happens after free fall and that will be the focus of this page. The length of the unstretched bungee cord is 11m. Give you a list of excellent (and TERRIBLE) research questions Give you 25 BRILLIANT IB Physics IA ideas at the end of this blog post too. Seasonal Events. For simplicity we will neglect side motions (that is: we assume that the whole assembly, cord and mass,. The cord first straightens and then extends as the jumper falls. The risks of having an accident while bungee jumping: 1:500,000. When a bungee cord is above the unweighted length, it is slack and exerts no opposing force, therefore, restoring spring force is conditional. Height of the jump 2. In this article we discuss the first phase of bungee jumping , when the bungee jumper falls, but the bungee rope is still slack. Middle Grades Science – Barbie® Doll Bungee Jumping TEACHING SUGGESTIONS (CONTINUED) The stretch of a rubber band is dramatically different from the stretch of a spring. ” The Physics Teacher (November 1993) 31: 483-487]. Each has a different spring constant and mass per length (only applicable if "Bungee Cord Has Mass" is enabled). The cord is stretched to a length of 1. 2 s, what is the spring constant of the bungee cord? Physics of Bungee Jumping : Kinematics of the bungee jumping is same as the spring-block oscillator. The spring constant is 8. 0 m, the student weighs 715 N, and the balloon is 36. Leave bungee jumping to the professionals. into a recreational activity. He takes the spring to a nearby bridge, attaches one end to the bridge and the other to his leg and jumps off. I have to make use of basic classes and arithmetic in order to complete this project. This experiment tested Hooke’s law to determine the characteristics of a given bungee cord sample for future experimentation in a bungee challenge. The start is from rest in a vertical position. The following diagram shows the force-extension characteristics of a bungee rope. If the hounds jump at the brook, even though they fail to clear it, the rider may take it for granted that at that place the leap is within the capacity of any ordinary hunter in his stride; hence if, when going at three parts speed, a horse's feet come just right to take off, the mere momentum of his body would take him over a place 15 ft. Be it the mystical mountains of Himachal Pradesh or Uttarakhand state, hill stations like Manali, Mcleodganj, Shimla, Rishikesh, Nainital. If work or heat are occurring, you show it entering/leaving across the boundary with a Q or W outside and an arrow across the circle in the direction of Q or W. Its unit is newton per met er , (i. Energy, Force, Bungee Jumping, and Dare-Deviled Eggs. Bungee Jumping Physics Names: Using the Bungee Jump simulation program Tasks: Start by setting the platform hieght to its minimum (h=10m), the spring constant of the bungee cord to its stiffest setting (k=200 N/m), the length of the bungee cord to its minimum (Lo=5m) and the jumper's mass to its minimum (m=40kg). Assume the following:The bungee cord behaves as an idealspring once it begins to stretch, with spring constant. Search Product Result. Determine the value of the spring constant k for a spring - Investigate the. It also showcases Hooke's laws and the spring constant. spring constant of the spring and an equation for the spring force 6. Image from: Hibbeler, R. A 75 g bungee cord has an equilibrium length of 1. When the person jumps, the cord stretches and the jumper bounces upwards again as the. That is, F = - k x, where x = 0 is defined by the equilibrium position of the spring. At the lowest point in the jump, the energy stored by the stretched bungee is 24. 1 Write down the equation which links gravitational field strength, gravitational potential energy, height and mass. asked by Anne on November 30, 2011; science. Next The groomsmen’s …. If the hounds jump at the brook, even though they fail to clear it, the rider may take it for granted that at that place the leap is within the capacity of any ordinary hunter in his stride; hence if, when going at three parts speed, a horse's feet come just right to take off, the mere momentum of his body would take him over a place 15 ft. , N/m) Example 1 : A spring suspended vertically and loaded at the bottom by a mass of 12 kg, extends it by 8 cm. The principle of Hooke's law may be used in regards to Bungee jumping. Hooke's Law Calculators: Enter value, select unit and click on calculate. We offer India's highest fixed platform BUNGY JUMPING (Bungee) at Mohanchatti near Rishikesh. Constant Contact Use. Still Curious? PROBLEM 7. The physics behind bungee jumping. G is the center of mass of the bungee cord k is the spring constant of the bungee cord, which is assumed to behave as a linear elastic spring The maximum distance the bungee jumper falls corresponds to the lowest point in the fall, where the velocity of the system is zero. The bridge is h = 100 m high and the jumper's mass is m = 50 kg. com/profile/07474431132993009562 [email protected] But we'll ignore that first and imagine the bungee applies a constant force. “The Physics of Bungee Jumping. During my jump, what will be the minimum distance between me and the surface of the water?. Bungee jumping spread rapidly throughout the world, ever-growing in popularity. The gravitational field strength is 9. We figured out the spring constant of the cords, made the calculations, tested them, built in a safety factor of ten, made all our systems redundant. the Bungee Challenge, this constant will be used when calculating the bungee length necessary for an ideal bungee experience. The rope is stretched to twice its normal length by a person of mass 75kg hanging at rest from the free end. The student models 'bungee jumping' in the laboratory by using elastic cords of unstretched length 50. Jump with rubber cords tied to your ankles and feel the adrenaline rush like never before. The bungee cord will stretch 5 m when 200 N of force is applied to it. Welcome to The Bungee Store, one of the UK’s leading suppliers of elastic bungee ropes and shock cords. Use these values to determine k for the bungee cord. 0 m above the surface of a river below. Visit us for Bungee jumping in Northern California, Bay Area bridge bungee jumping , bungee instruction in Northern California, California group bungee jumping, Icarus Bungee. Well, I guess start by forgetting that the bungee is a spring, and would apply a non-constant force. A bungee cord works in the same manner as a spring. What is the spring constant of the bungee cord? b. uk sells and supplies high quality Bungee Cord at competitive prices. 00 m long and has a spring constant of 5. 73 m (see figure below). Measure the height to the bottom of the. Bungee Jumping obeys Hooke's Law where F = - kx, where x is equal to displacement (change in the spring's length) and k is the spring constant. A two-piece linear model is used to describe the stiffness (spring constant) of the bungee cord: the stiffness is k 1. Bibliography. To be safe, the bungee cordshould stop George's fall when he is at least 2. She is tied to a 12-m-long bungee cord and falls a total of 31m. The tall structure is usually a fixed object, such as a building, bridge or crane; but it is also possible to jump from a movable object, such as a hot-air-balloon or helicopter, that has the ability to hover over one spot on the ground. Figure 17 The mass of the student is 50. The spring constant, k 2. 2 kg bungee jumper jumps from a bridge. Then the force with which the bungee rope pulls him back into the sky depends on the current length of the rope and is k * Δl, where Δl is the difference between the rope's current length and its nominal, unexpanded length, and k is a rope-specific constant. Bungee trampolines tend to be quieter, sturdier and more reliable than spring trampolines, making upkeep and maintenance a breeze. The spring constant of typical rubber bands varies widely, between about 8 and 60 newtons per metre. The gravitational field strength is 9. But he doesn’t stop there. A bungee jumper jumps (with no initial speed) from a tall bridge attached to a light elastic cord (bungee cord) of unstretched length L. She is tied to a 11. Menz in The Physics Teacher, Nov. Seasonal Events. For example, the cord producer must design cords to not only support specific weights, but to be a certain length at maximum (stretched out) distance. The length of the unstretched bungee cord is 11m. Size(8mmx14mm,6mmx12mm),length can custom as your request 2. In this case, the bridge is 71 m above the river. 2) Imagine a ball attached to a spring which hangs from the ceiling. Her bungee cord has an un-stretched length of 50 m and a spring constant of k= 600 N/m. During my jump, what will be the minimum distance between me and the surface of the water?. 0 m over the river below. sometimes I think I was born fearless…in everything my whole life. Bungee Jumping in Nepal attracts a wide range of people from different parts of the world, from various age groups. into a recreational activity. If the period of oscillation is 12. The bungee cord, which has length L when unstretched, will first straighten and then stretch as Kate falls. b) Consider the bungee jumping at Kawarau Bridge (New Zealand), where the bridge height is H 43 m, and the length of the bungee cord when relaxed L-30m. Taking 1 bungee jump is about as dangerous as driving 100 miles by automobile in the United States. Assumptions. Throwing a party that fits the season gives the impression of a well-thought-out event. Riddle Solutions. Facts About the Victoria Falls Bungee Jumping • It is 111 meters high. The bungee rebounder is one that I promote for doing exercise only for the most part. F = spring force (N) k = spring constant (N/m) x = length of the displacement for the spring (m) •k, the spring constant, represents how rigid the spring is: a high k spring = a highly rigid spring •When pulling a spring, k is negative (-k) •When pushing a spring, k is positive (k). With "and " selected, the Demonstration shows the position and the acceleration of the jumper at time. High quality 100% natural. Please help me - need the answer and sum. Bungee Jumping Physics Names: Using the Bungee Jump simulation program Tasks: Start by setting the platform hieght to its minimum (h=10m), the spring constant of the bungee cord to its stiffest setting (k=200 N/m), the length of the bungee cord to its minimum (Lo=5m) and the jumper's mass to its minimum (m=40kg). South Padre Spring Break can accommodate with almost-daily sunset cruises aboard of 60 foot catamaran. This means that the kinetic energy of the system at the lowest point is. How that I understand the physics, I understand that given the spring constant of the bungy cord used (I tried to find this online and couldn’t) and given the potential energy I had on the bridge – mgh = 50kg*9. To emphasize that x refers to the change in length of the spring we write F = mg = kΔl. Springs are generally made from spring steels, which are alloys based on iron, with small amounts of carbon (around 0. How to Get a Constant 12v From a 3S2P "A123" Pack, Guy Fawcett explains how he did it to power his onboard sound system. These include its height, how much mass you have and how much "spring" your bungee cord has. To be safe, the bungee cord should stop Jorge's fall when he is at least 2. Record these values: The height, in meters, above the ground of the mass when it is released. Conservation of Mechanical Energy Lab Objectives: Determine the spring constant of a spring. Participants can bungee jump from 71m bridge, fastened to an elastic rope that is adjusted to halt their descent at an appropriate level. 为大人带来形象的羊生肖故事来历 为孩子带去快乐的生肖图画故事阅读. The tall structure is usually a fixed object, such as a building, bridge or crane; but it is also possible to jump from a movable object, such as a hot-air-balloon or helicopter, that has the ability to hover above the ground. If George has a mass of 75. At the time, I didn’t understand the physics behind bungee jumping and therefore was unsure about hitting the water. The rope is specially designed and its spring constant is known. The stunt was done using a massive metal spring that jumped below the truck and flipped it into the air. Determine how high above water Barbie should be dropped to get her hair wet, but not let her face go under the water. Bungee jumping is an activity that involves jumping from a tall structure while connected to a large elastic cord. In this instance, all of that energy must be counteracted by the bungee cord, which we can treat like a spring , for the person to come to a stop. 0 cm from equilibrium. 1) Mr Trask and his 8 year old nephew go bungee jumping. Bungee Jumping Objectives: Demonstrate appropriate lab procedures. A bungee jumper jumps (with no initial speed) from a tall bridge attached to a light elastic cord (bungee cord) of unstretched length L. If, at the equilibrium point, the bungee cord measures 15m, what is its spring constant? Homework Equations F = k*x Ep = (1/2)(k)(x^2) The Attempt at a Solution. energy has now been entirely converted to the potential energy of the bungee cord which acts just like a spring. We first determine the "spring constant" k of the bungee cord. 96 N/m Answer: The spring constant is 100 N/m (nearest tenth). Please review our Warranty And Return Policy before completing your order. ; Tinsley, J. ID Code: C8-13 Purpose: Determine the minimum value of the spring constant of a bungee rope to ensure a safe jump. Then he falls 64. When you have the bungee jumping, the gravity will play a great effect on your situation. Here you will find information on the sport of rebounding, read reviews, the health benefits, and the guaranteed lowest price on every model of rebounder trampoline we at Needak offer. The jumper's Kinetic energy 1/2m v 2 =mgh where h=42' and m=150/32. Question is: An 80kg student jumps from a bridge on a bungee rope. In the figure below, we see that the force is porportional to the "stretch" of the cord, that is, the length of the cord over the relaxed length L0. For more accurate results, have a friend help you out. These include its height, how much mass you have and how much "spring" your bungee cord has. Assume the following: The bungee cord behaves as an ideal spring once it begins to stretch, with spring constant k. Bungee Jumping Basics A simple way to model a bungee cord is as an ideal spring (following Hooke’s Law) when stretched, but no force on compression (when the slack cord just doubles over itself). When the woman is at the bottom of her trajectory, she is 9 m above the water. The dashed. The truck’s driver was a stuntman named Jim Wilkey, who was literally inside the truck while this happened. After a long hesitation, you dive off the bridge. Show that the manufacturer will need to select a spring with a spring constant of 8 *P45035A0824* 12 A bungee jump consists of three main stages: free fall jump until the rope is straight deceleration as the bungee rope stretches upwards motion as the bungee rope contracts. A bungee cord with a spring constant of 800 stretches 6 meters at its greatest displacement. Fan, Kai Beng. According to the graph, the spring constant was determined to be 13. Menz in The Physics Teacher, Nov. 2) Imagine a ball attached to a spring which hangs from the ceiling. An unstretched bungee cord has a large amount of potential energy. sometimes I think I was born fearless…in everything my whole life. Code to add this calci to your website. the elastic (spring) constant of the rope k, and the. Potential energy stored in a spring Our mission is to provide a free, world-class education to anyone, anywhere. The student investigates the relationship between the maximum distance h fallen by the object and the spring constant k of the elastic cord. For simplicity we will neglect side motions (that is: we assume that the whole assembly, cord and mass,. See also Potential energy for a discussion of the spring constant and the force required to distort bungee cords and other spring-like objects. To understand the physics of a bungee jump, the full jump can be split into 3 parts. energy has now been entirely converted to the potential energy of the bungee cord which acts just like a spring. Middle Grades Science – Barbie® Doll Bungee Jumping TEACHING SUGGESTIONS (CONTINUED) The stretch of a rubber band is dramatically different from the stretch of a spring. What is the value of k for this cord? PROBLEM 8 (CAS). 4/30/2019 Using Hooke's law to find the spring constant of an elastic system in class. The bungee cord has an unstrained length of L 0 = 9. From the moment that the spring (bungee) comes under tension, the motion of the jumper can be described as a combination of simple harmonic oscillator and a constant acceleration - that is, a sine wave with an offset (the offset is the "equilibrium point" you mentioned). 00 m, and when stretched, behaves like an ideal spring with a spring constant of k = 66. 8 feet Which describes have spring cost to fix the potential energy of an object were given displacement from. Be it the mystical mountains of Himachal Pradesh or Uttarakhand state, hill stations like Manali, Mcleodganj, Shimla, Rishikesh, Nainital. The bungee cord has a relaxed length of 10. The truck’s driver was a stuntman named Jim Wilkey, who was literally inside the truck while this happened. The bungee cord, which has length L when unstretched, will first straighten and then stretch as Kate falls. constant k is called the spring constant, or stiffness coefficient. Second, Calculate the maximum acceleration she experiences. by Sarah Williamson. The bungee cord behaves like a spring with a spring constant of 40 N/m. 0 N/m, and gravitational acceleration (g) is 9. Bungee Jumping in Victoria Falls is a 111m (364ft) drop falling almost into the Zambezi River off the historical Victoria Falls Bridge between Zimbabwe and Zambia We are Still Open For Business - PLAN NOW, TRAVEL LATER – No Deposits to Pay. 3 At the lowest point in the jump when the student is stationary, the extension of the bungee cord is 35 metres. But when it came time for the bridal couple’s photos, an unexpected tension mounted. The force of an elastic object (spring), is directly related to how far the spring is stretched (displacement) k. Self-explanatory by its name, a constant force spring requires nearly the same force, no matter how long the extension. A 65 kg bungee jumper leaps from a bridge. While on vacation, they decide to try bungee jumping. Then the force with which the bungee rope pulls him back into the sky depends on the current length of the rope and is k * Δl, where Δl is the difference between the rope's current length and its nominal, unexpanded length, and k is a rope-specific constant. Kate's height is negligible. 0 N/m, the barrel of the gun is 15 cm long, and a constant frictional force of 0. A bungee cord works in the same manner as a spring. part b)Calculate the maximum. Here you will find information on the sport of rebounding, read reviews, the health benefits, and the guaranteed lowest price on every model of rebounder trampoline we at Needak offer. a) How fast is she falling when she just starts to stretch the cord? How long does it take for Lola to reach this point? b) Lola stretches the bungee cord and it brings her to a stop. The simulation operator can control the height of the tower, the stiffness of the bungee cord (determined by its spring constant k), the unstretched length of the bungee cord and the jumper's mass. displacement or the spring constant increases, so does the force exerted on the mass. Participants jump from the bridge, fastened to an elastic rope that is adjusted to halt their descent at an appropriate level. The cord is stretched to a length of 1. The physics behind bungee jumping. Assume that your mass is 80 kg. Relevant equations and variables: à à Hooke's Law: F s = -kx à à Equilibrium conditions: F s = -W F s: "spring force" or force of the cord (opposite of the weight of the system when in equilibrium). Kate doesn't actually jump but simplysteps off the edge of the bridge and falls straightdownward. stretch F = -kx where k is the spring constant, x is the extension. 2) Imagine a ball attached to a spring which hangs from the ceiling. Find the speed of the block after it separates from the spring. Multiplex Multilock UNI, a very good system for wing attachment. Assumptions. A 60kg bungee jumper jumps from a bridge. The basic process of bungee jumping is fairly obvious. A more realistic graph is this one, where the chain has a much higher spring constant: the green line is the acceleration predicted in the article above, with the equation: where y is negative meters from the top (so if y=0 the object is at the start and if y=70 the object is at the end). An object is attached to each cord. In bungee jumping, a bungee cord acts like a spring. Bungee Jumping of Their Own (2001) BluRay 480p & 720p One Fine Spring Day (2001) BluRay 480p & 720p The Constant Gardener (2005) BluRay 480p & 720p. The jumper, attached to a cord, jumps off something. Bungee Run Basketball $300 Two people battle it out as they run towards their goal to shoot the hoops. How stretched is the bungee cord past its natural length? c. 5m, is it safe for the person to jump 2. Size(8mmx14mm,6mmx12mm),length can custom as your request 2. When fully suited, she has a mass of 70. 8m/s 2 *43m = 21070 J – I could not have reached the spring. If the bungee cord used has a stiffness of 204 N/m and a length of 9. They then free fall, until the cord becomes tight, at which point they spring back slightly and bounce around before coming to a swaying ‘standstill’. He starts from rest in a vertical position. In the figure below, we see that the force is porportional to the "stretch" of the cord, that is, the length of the cord over the relaxed length L0. Kate, a bungee jumper, wants to jump off the edge of a bridge that spans a river below. The Bloukrans River Bridge was the first bridge to be ‘bungee jumped off’ in Africa when Face Adrenalin introduced bungee jumping to the African continent in 1990. A bungee jump is a conservative system - or - a system that maintains the same amount of energy from beginning to end. 1 The History of Bungee Jumping Before bungee jumping came into being as a popular modern sport, it served as a religious ritual for a few hundred years. Search Product Result. Engineering Calculators Menu Engineering Analysis Menu. 6–1 percent), and chromium (0. After a long hesitation, you dive off the bridge. A mass connected to an ideal spring is oscillation without friction on a horizontal surface. Bungee Jumper. I have to make use of basic classes and arithmetic in order to complete this project. Let the bridge be at x=-160 feet, and the creek be at x=140 feet. Kate has a mass m, and the surface of the bridge is a height h above the water. Pool Floats and … slide 1 of 2, active. The bungee cord had an unknown. A bungee jumper jumps (with no initial speed) from a tall bridge attached to a light elastic cord (bungee cord) of unstretched length L. When a bungee cord is above the unweighted length, it is slack and exerts no opposing force, therefore, restoring spring force is conditional. Jump Mat made of Heavy Duty Grade A Black TenCate Permatron® trampoline fabric, and is the number one choice for quality, performance, durability, and value. length of the bungee cord being used by Barbie to give her the best jump. She is tied to a bungee cord that is 11m long when unstretched, and falls a total of 30m. Kate doesn’t actually jump but simply steps off the edge of the bridge and falls straight downward. They are parodies of notable fables, fairy tales and Japanese folklore, and stars the main characters: Doraemon, Nobita, Shizuka, Gian and Suneo. Potential, or stored, energy is a very vital part of bungee jumping. (418) 659-9389. So you should pay more attention to it. The unstretched length of the cord is 26. 0 m longer than its unstretched length, then released. A more realistic graph is this one, where the chain has a much higher spring constant: the green line is the acceleration predicted in the article above, with the equation: where y is negative meters from the top (so if y=0 the object is at the start and if y=70 the object is at the end). One end of the elastic bungee cord (treat it as a long spring) is tied to the participant’s foot and the other end to the top of the platform. Non-stock items ship in 7-10 business days, non-refundable after order is placed. As-sume a month is 30. Bungee Drop Derivation In order to accurately predict the length s of the static cord using these variables, we need to derive an equation that includes only known and constant variables, as shown below. The spring (and its spring constant) is fully responsible for force. 5 m and a 0. Determine (a) the required spring constant k of the. The maximum force the bungee cord can handle without breaking is 15,000 N. 80 m, then vibrated at 20 Hz. The restoring force of the bungee cord is thus modeled as follows: if , and if , where is the spring constant of the bungee cord. stretch F = -kx where k is the spring constant, x is the extension. You stand on a bridge 100 m above a raging river and attach a 30-m-long bungee cord to your harness. You stand on a bridge 110 m above a raging river and attach a 35-{\\rm m}-long bungee cord to your harness. 104IP Referring to Example Consider a spring with a force constant of 955 N/m. What is the formula for determining how close to the ground a bungy jumper will be at maximum stretch when you have the following variables? Height of bungee tower: H height of jumper: h Spring constant of cord: k Weight of jumper: w Length of cord: L Also if you could tell me a likely actual value for k it would be appreciated. Being an engineer, he chooses the spring constant and rest length of the bungee cord so that his speed will have been reduced to zero at the instant that his head touches. Measure the height to the bottom of the. in the air at 120 miles per hour. Elastic potential energy (measured in the unit joules) is equal to ½ multiplied by the stretch length ("x") squared, multiplied by the spring constant "k. Relevant equations and variables: à à Hooke’s Law: F s = -kx à à Equilibrium conditions: F s = -W F s: “spring force” or force of the cord (opposite of the weight of the system when in equilibrium). The weight of the boulder has compressed the spring by ¾ of a meter. Jumping Bungee cord ,leading factory of bungee cord,bungee cord with double or single textile ending,used for bungee Bungee cord with double textile ending. Elastic Potential Energy Introduction, Work Done By a Spring Force, Hooke's Law, Physics Problems - Duration: 15:43. com,1999:blog-4455406453775425368. Trampoline elastic potential energy Elastic potential energy, to put it very simply, is the energy that is stored within an elastic object. Express this equation in units of cubic feet and seconds. 0 N/m, and gravitational acceleration (g) is 9. The bridge is 36. You may assume that his mass is 75 kg. Initially, the only energy acting in a bungee jump is the potential energy due to gravity. The model assumes there be. Intro to springs and Hooke's law | Work and energy | Physics | Khan Academy - Duration: 10:06. A bungee jumper jumps off a cliff with a cord of unstretched length $L$ and a spring constant $k$. In this article we discuss the first phase of bungee jumping, when the bungee jumper falls, but the bungee rope is still slack. Bungee jumping is an activity that involves jumping from a tall structure while connected to a large elastic cord. We recommend you do this early in the week as it is a great way to meet other people during your Spring Break week. [citation needed] The Bloukrans River Bridge was the first bridge to be used as a bungee jump launch spot in Africa when Face Adrenalin introduced bungee jumping to the African continent in 1990. Physics Stack Exchange is a question and answer site for active researchers, academics and students of physics. Relevant equations and variables: à à Hooke's Law: F s = -kx à à Equilibrium conditions: F s = -W F s: "spring force" or force of the cord (opposite of the weight of the system when in equilibrium). The Originsl Bungee Company sells Bungee Cords, Tie Downs, Crimping Tools, EPDM Straps, Rubber Ropes, Tarps, Custom Bungees and more. The length of the unstretched bungee cord is 11m. Kate doesn't actually jump but simply steps off the edge of the bridge and falls straight downward. Assume the following: The bungee cord behaves as an ideal spring once it begins tostretch, with spring constant. Measure the height, mass, and spring constant. The cord's spring constant has been lowered. The simulation operator can control the height of the tower, the stiffness of the bungee cord (determined by its spring constant k), the unstretched length of the bungee cord and the jumper's mass. Chris spends his spare time running a bungee jumping service off the Henley Street bridge. How much elastic potential energy does the " in Physics if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions. [edit] Equipment Bungee jumping off the Zambezi Bridge at Victoria Falls in southern Africa, April 1996 The elastic rope first used in bungee jumping, and still used by many commercial operators, is. The Bloukrans River Bridge was the first bridge to be ‘bungee jumped off’ in Africa when Face Adrenalin introduced bungee jumping to the African continent in 1990. Bungee Jumping Objectives: Demonstrate appropriate lab procedures. From this data, a final set-up for the bungee jump was determined and this model tested. The tall structure is usually a fixed object, such as a building, bridge or even a cliff, that has the ability to hover above the ground. This game is a crowd pleaser and allows constant activity for your guests. Leave bungee jumping to the professionals. Kaip lietuviškai šiti dalykai vadinasi nežinau ir neturiu noro sukti dėl to galvos ;P Paskutinį kartą atnaujinta 2012-04-25. The specifications call for the cable to be 85 ft long when unstretched, and to stretch to a total length of 100 ft when a 600 lb weight is attached to it and dropped from the tower. Assume the following: The bungee cord behaves as an ideal spring once it begins to stretch, with spring constant k. Pennsylvania Ave. 75 m / 9 ft. The bungee cord acts like a weak spring with a stiffness that decreases with extension (Menz, 1993). The bungee cord, which has length L when unstretched, will first straighten and then stretch as Kate falls. Bungee jumping has been around for ages. See also Potential energy for a discussion of the spring constant and the force required to distort bungee cords and other spring-like objects. "x" as always). Bungee Jumping Bungee jumping is a sport that has dramatically evolved over the past couple decades. The cord is stretched to a length of 1. 4 elastic potential energy. 1) A 65 kg trampolinist is jumping on a trampoline. Intro to springs and Hooke's law | Work and energy | Physics | Khan Academy - Duration: 10:06. We recommend you do this early in the week as it is a great way to meet other people during your Spring Break week. When the woman is at the bottom of her trajectory, she is 9 m above the water. Assume the following: The bungee cord behaves as an ideal spring once it begins to stretch, with spring constant (k) Kate doesn't actually jump but simply steps off the edge of the bridge and falls straight downward. Determine the PE stored in a stretched elastic band system. If we assume the bungee cord is 80m long then x = 220m – 80m = 140m where we have neglected the fact that Bond is a couple of meters from the bottom when he shoots his grapple. We first determine the "spring constant" k of the bungee cord. Smith carefully makes himself a bungee-jumping rope and leaps off of a 30 m high bridge. A bungee cord, for practical purposes, is just a long spring, and this cord has a spring constant of 43 N/m. Find the spring constant. potterparkzoo. Thus an equation can be written (see fig 1). The tall structure is usually a fixed object, such as a building, bridge or crane; but it is also possible to jump from a movable object, such as a hot-air-balloon or helicopter, that has the ability to hover above the ground. Simply click the stopwatch when your feet leave the ground and click it again on impact. The elastic potential energy of a spring with spring constant k and extension x is 0. Figure 17 The mass of the student is 50. Leave bungee jumping to the professionals. displacement or the spring constant increases, so does the force exerted on the mass. SI unit of k = N/m. 32 m and the trampoline is accelerating her upwards at 8. Kate doesn't actually jump but simply steps off the edge of thebridge and falls straight downward. Welcome to the Needak Rebounder Trampoline Shop - Home of our Mini-Trampoline Welcome to Needak. This banner text can have markup. Changing mass phenomena like the motion of a falling chain, the behaviour of a falling elastic bar or spring, and the motion of a bungee jumper surprise many a physicist. Intro to springs and Hooke's law | Work and energy | Physics | Khan Academy - Duration: 10:06. Determine the value of the spring constant k for a spring - Investigate the. Spring Constant Formula Question: 1) Find the spring constant of a spring if it requires a 9000 N force to pull it 30. Part a) Calculate the spring constant of the bungee cord assuming Hooke's law applies. An 83kg student hangs from a bungee cord with spring constant 270N/m. The length of the rope under zero load is 15 m. To understand the properties of a spring, it helps to be familiar with Hooke's law, which is a linear equation. Chris spends his spare time running a bungee jumping service off the Henley Street bridge. A bungee-jumping rope has an unstretched length of 35 m. What energy transfers happen to a bungee jumper after jumping off the platform? When the rope is slack, energy is transferred from the gravitational potential energy store to the kinetic energy store as the jumper accelerates towards the ground due to the force of gravity. The risk of a bungee jumping accident is about 1 in 500,000. If the hounds jump at the brook, even though they fail to clear it, the rider may take it for granted that at that place the leap is within the capacity of any ordinary hunter in his stride; hence if, when going at three parts speed, a horse's feet come just right to take off, the mere momentum of his body would take him over a place 15 ft. We first determine the "spring constant" k of the bungee cord. ; Tinsley, J. (See The Physics of Bungee Jumping by P. The force of an elastic object (spring), is directly related to how far the spring is stretched (displacement) k. The student models 'bungee jumping' in the laboratory by using elastic cords of unstretched length 50. It takes everything the V4 has and kicks it up a notch. Rather than practice on yourself or a trusting (but possibly foolish) friend, you will manufacture and test your very first bungee jump cord for your very own. Teacher Overview - Barbie® Doll Bungee Jumping Although rubber bands are not truly elastic and do not have a definite spring constant or "stretch constant" as used in this lab, this activity serves a useful purpose in developing data gathering, graphing, inquiry, and data analysis skills. Kate doesn't actually jump but simplysteps off the edge of the bridge and falls straightdownward. I'm going to bungee jump off a bridge that is 80 m above the water. Free Body Diagram Of A Bungee Jumper. Simulating Bungee Jumping Bungee jumping is a type of activity where a person is dropped from a tall structure while connected to a large elastic rope. For example, the cord producer must design cords to not only support specific weights, but to be a certain length at maximum (stretched out) distance. a spring with natural length Land spring constant k. Still Curious? PROBLEM 7. Your plan has him stepping off a platform and being in free fall for the 30 m before the cord begins to stretch. When fully suited, she has a mass of 70. By definition the spring constant for the bungee cord is k = W/x = (499. Manufacturers of rebounders have created a shock absorption mechanism. The large cast soon rushed forth to take their bows—those that could, anyway—while nine simian-suited actors boing-boinged about happily above them in the available air-space on bungee ropes. New Zealand is the home of bungee jumping. 5 kg pumpkin on a spring scale. This transfer of energy comes from elastic energy which is explained in Hookes Law of the restoring force of an ideal spring. Lola has a mass of 45kg 1. Hooke's Law states that, for perfect springs, force = the spring constant x distance, where the spring constant is a property of the material. Bungee Girl, the travel app I founded, really was a great idea. “The Physics of Bungee Jumping. Size(8mmx14mm,6mmx12mm),length can custom as your request 2. After bouncing around violently. ) Frank has a mass of 100 kg, and his petite wife, Jo, has a mass of 50 kg. The length of the rope under zero load is 15 m. 0 N/m, and gravitational acceleration (g) is 9. The bungee cord had an unknown. edu Linear Mechanics. Using Newton’s 2nd Law, determine the spring constant for this bungee cord. Bungee jumping (also spelled "Bungy" jumping) [1] [2] is an activity that involves jumping from a tall structure while connected to a large elastic cord. With 2 extra inches of stroke and a reduced friction bushing, the V4 Pro has a smoother bounce and is more comfortable at higher altitudes. Kate doesn't actually jump but simply steps off the edge of the bridge and falls straight downward. Height of the jump 2. A bungee cord is essentially a very long rubber band that can stretch up to four times its unstretched length. Energy, Force, Bungee Jumping, and Dare-Deviled Eggs. 7 percent), silicon (0. Size(8mmx14mm,6mmx12mm),length can custom as your request 2. The Originsl Bungee Company sells Bungee Cords, Tie Downs, Crimping Tools, EPDM Straps, Rubber Ropes, Tarps, Custom Bungees and more. Spring Constant Formula Springs have their own natural "spring constants" that define how stiff they are. According to Hooke’s law the spring constant is theoretically linear, and is calculated by k=F÷, therefore is the gradient of the line which passes through the origin. What is the mass of the student? The length of the relaxed cord is Y_e; the distance from the bridge to the river surface is Y_0 (where Y_0 > Y_e), and the spring constant of. from an imaginary point 160 feet below the bridge. 0 m, the student weighs 715 N, and the balloon is 36. Calculate the maximum acceleration experienced by the jumper. To be safe, the bungee cord should stop George’s fall when he is at least 2. John and I did a lot of R & D before we started our company. The spring constant, k, is given by the extension, Δx, for a given applied force F: F = -kΔx or k = F /Δx. 226] and enables. One end of the rope is attached to a bridge deck, and the other end is attached to a person standing on the deck. That is, F = - k x, where x = 0 is defined by the equilibrium position of the spring. A 72 kg bungee jumper jumps from a bridge. With these conditions, the object would return to its original size and shape with removal of the load. However, a bungee jumper often accelerates much faster than this. Assume a vertical jump with initial velocity of zero. The force of an elastic object (spring), is directly related to how far the spring is stretched (displacement) k. The gravitational force is almost exactly constant throughout the jump. The bungee jump operators have to adjust the length of the cord carefully so the person does not hit the water. Which of the following is the best estimate of the spring constant of the bungee rope? a. Initially, the only energy acting in a bungee jump is the potential energy due to gravity. In bungee jumping, a bungee cord acts like a spring. When a 50 kg person is hangs from a 20 m bungee cord it stretches to a length of 32 m. This game is a crowd pleaser and allows constant activity for your guests. Self-explanatory by its name, a constant force spring requires nearly the same force, no matter how long the extension. SLING SHOT, SKYSCRAPER , BUNGEE JUMPING Intersection Ocean Blvd. Height from the Ground: 220m (I don't want him hitting the ground so he needs to stop at around 200m) Slowdown rate: 2. The bungee cord has a relaxed length of 10. 0 m over the river below. See also Potential energy for a discussion of the spring constant and the force required to distort bungee cords and other spring-like objects. Check out our top Free Essays on Bungee Jumping to help you write your own Essay. spring constant of the spring and an equation for the spring force 6. A bungee jumping company wants to set up a bungee jumping location on the top of a bridge that is 100 m above the ground. When bungee jumping from a high bridge over Victoria Falls, an operator first attaches an elastic rope to the jumper. They then free fall, until the cord becomes tight, at which point they spring back slightly and bounce around before coming to a swaying 'standstill'. Physics Project: Bungee Jumping. Two projects that will boost tourism and bring about unique experiences for tourists visiting Busan will be promoted: One on a bungee jump tower at Haeundae Beach and another on zip line at Songjeong Beach. According to the graph, the spring constant was determined to be 13. 226] and enables. The cord is stretched to a length of 1. [edit] Equipment Bungee jumping off the Zambezi Bridge at Victoria Falls in southern Africa, April 1996. Kate’s height is negligible compared to the length of the bungee cord. 8m/s 2 *43m = 21070 J – I could not have reached the spring. The bungee cord has a relaxed length of 10. Assume the following: The bungee cord behaves as an ideal spring once it begins to stretch, with spring constant k. By standing on a high platform, the jumper's potential energy is also increased, whereby the higher he goes, the higher potential energy the jumper would have. 10 horrifying bungee jumping accidents, that went horribly wrong, and occurred while the bungee cord snaps, or the bungee rope breaks, while people were actually bungee jumping and it went terribly wrong! Videos and photos of bungee cord breaking, horrible injuries and fatal crashes caught on camera. The truck’s driver was a stuntman named Jim Wilkey, who was literally inside the truck while this happened. Potential energy stored in a spring Our mission is to provide a free, world-class education to anyone, anywhere. The Bloukrans River Bridge was the first bridge to be ‘bungee jumped off’ in Africa when Face Adrenalin introduced bungee jumping to the African continent in 1990. They then free fall, until the cord becomes tight, at which point they spring back slightly and bounce around before coming to a swaying ‘standstill’. The natural length of the bungee cord is L, the extension of the cord, e and extended length of the cord, r (2). Simple Harmonic Motion. In the dangerous "sport" of bungee jumping, a daring student jumps from a hot-air balloon with a specially designed elastic cord attached to his waist. The validity of Hooke's law for the system and the relationship between the spring constants of the segments and the spring constant of the entire spring are verified experimentally. The thrill comes from the free-falling and the rebound. When bungee jumping from a high bridge over Victoria Falls, an operator first attaches an elastic rope to the jumper. (g = 10 m/s) (5) (b) Use the principle of energy conservation to determine how far the "BUNGER" will fall when. Result will be displayed. The bungee spring is secured to the ceiling Sky-Hook by means of a dedicated rig. She is tied to a bungee cord whose unstretched length is 14 m, and falls a total of 43 m. Calculate elastic potential energy. A patented no-gap enclosure system interlocks the jump mat and enclosure net at each spring, eliminating dangerous gaps and giving parents peace of mind (Patent #RE45, 182). As a tribal tradition, the ritual was soon incorporated with a bungee cord. , N/m) Example 1 : A spring suspended vertically and loaded at the bottom by a mass of 12 kg, extends it by 8 cm. , and the when unstretched, will first Assume the following: The bungee cord behaves as an ideal. A bungee cord works in the same manner as a spring. Be it the mystical mountains of Himachal Pradesh or Uttarakhand state, hill stations like Manali, Mcleodganj, Shimla, Rishikesh, Nainital. Kate doesn't actually jump but simply steps off the edge of the bridge and falls straight downward. Cords meet or exceed CBA, NABA, BERSA, SANZ and Australian specifications. We will then enjoy a beautiful 5-mile hike to the bridge, spend the afternoon bungee jumping, and return on the 5-mile hike back, arriving at your car between 3:00-6:00pm depending on the tour size and time of year. Espring = 1 2 kx2) k = 2E spring=x 2 and x = 45 20 = 25 m so k = 2 25000=252 = 80 N/m (e) Calculate the net force acting on Johanna at C and hence find her. The jumper then jumps off the bridge, falling freely until they reach the unstretched length of the rope. He takes the spring to a nearby bridge, attaches one end to the bridge and the other to his leg and jumps off. The Bloukrans River Bridge was the first bridge to be ‘bungee jumped off’ in Africa when Face Adrenalin introduced bungee jumping to the African continent in 1990. [edit] Equipment Bungee jumping off the Zambezi Bridge at Victoria Falls in southern Africa, April 1996 The elastic rope first used in bungee jumping, and still used by many commercial operators, is. [citation needed] The Bloukrans River Bridge was the first bridge to be used as a bungee jump launch spot in Africa when Face Adrenalin introduced bungee jumping to the African continent in 1990. The bungee cord has an unstrained length of L0 = 9. Throwing a party that fits the season gives the impression of a well-thought-out event. That is, F = - k x, where x = 0 is defined by the equilibrium position of the spring. Bungee Jumping in Nepal attracts a wide range of people from different parts of the world, from various age groups. One end of the rope is attached to a bridge deck, and the other end is attached to a person standing on the deck. consider a bungee cord of unstretched length When the cord is stretched to L > L0 it behaves like a spring and its tension follows the Hooke's law T = k(L − L0). physics spring constant. The way they explained it to us, it’s not a pie chart, it’s an energy flow chart. spring = spring mass •l = unstreatched spring length •k = spring constant •g = acceleration due to gravity •F t = pre-tension of spring •r s = static spring stretch, = 𝑔−𝐹𝑡 𝑘 •r d = dynamic spring stretch •r = total spring stretch +. To test his bungee, he ties the bungee cord to the bridge railing, ties the other end to an unnamed Estabrook professor weighing 130 pounds, and then gently nudges the professor off of the bridge. Assumptions. Usually about 6 inches above the mat can get a similar G force but this slows down the repetition and stops the negative pressure too long so that the lymph drainage can flow when doing the. 2) Imagine a ball attached to a spring which hangs from the ceiling. Don't allow unsupervised jumping. The bungee cord is 25. 3 At the lowest point in the jump when the student is stationary, the extension of the bungee cord is 35 metres. Assume the following: A) The bungee cord behaves as an ideal spring once it begins to stretch, with spring constant. com AP Physics 1: Work and Energy 17: Conservation of Energy: Bungee Jump Problem - Duration: 7:37. Chapter 8 Potential Energy And Conservation Of Energy Q. The tall structure is usually a fixed object, such as a building, bridge or crane; but it is also possible to jump from a movable object, such as a hot-air-balloon or helicopter, that has the ability to hover over one spot on the ground. A bungee jumper jumps (with no initial speed) from a tall bridge attached to a light elastic cord (bungee cord) of unstretched length L. Conical compression springs are great for reducing your compression spring’s solid height due to the telescope effect their tapered shape provides. A Country AffairIt was a lovely farm style wedding that took place on a perfect day out on the prairie. part b)Calculate the maximum. The gravitational field strength is 9. What is the value of k for this cord? PROBLEM 8 (CAS). Then there are other forces which act on your body like spring force which works negative on you while gravitational force. She is tied to a 12-m-long bungee cord and falls a total of 31m. You can find full safety information and contact details for the company who runs the bungee jumping in Crete at their website here: Liquid Bungee. The bungee cord has a relaxed length of 10. • Minimum age 14 years. A person of mass 65kg is going to bungee jump from a platform that is 18. The length is adjusted according to the weight of the jumper. 25 m piece of cord. Our goal will be to make an overall judgment regarding the conservation of energy principle. The bungee cord is 25. Classroom Demonstrations Harold T. I have to make use of basic classes and arithmetic in order to complete this project. Relationship Between Spring Constant and Length of Bungee Cord Abstract: Hooke's Law states that the Force of a Spring is equal to the Spring Constant k multiplied by the dis-placement value, x. 4/30 and 5/1, 5/2 Hooke's Law and Bungee Jumping. One end of the elastic bungee cord (treat it as a long spring) is tied to the participant's foot and the other end to the top of the platform. One end of the elastic bungee cord (treat it as a long spring) is tied to the participant’s foot and the other end to the top of the platform. The bungee cord had an unknown. The deforming force may be applied to a solid by stretching, compressing, squeezing, bending, or twisting. Details of the full range in Shop. 25 m, an increase of x = 0. Figure 17 The mass of the student is 50. Your family will love the Skywalker Trampolines 17' Oval Trampoline with Enclosure! This unique oval shape provides a longer jumping surface, giving children more room to play. Don't allow somersaults or other potentially risky moves on the trampoline without supervision and instruction. Assume a vertical jump with initial velocity of zero. , Stephanie and Michelle grow up with three devoted father figures: their widowed dad, his goofy best friend and their cool uncle. Rather than practice on yourself or a trusting (but possibly foolish) friend, you will manufacture and test your very first bungee jump cord for your very own. Khan Academy is a 501(c)(3) nonprofit organization. Trampoline parts, supply and accessories, find all your trampoline parts pads mats enclosures at low prices. The letter k is used for the spring constant, and it has the units N/m. How to Get a Constant 12v From a 3S2P "A123" Pack, Guy Fawcett explains how he did it to power his onboard sound system. 1 The History of Bungee Jumping Before bungee jumping came into being as a popular modern sport, it served as a religious ritual for a few hundred years. She obtains a cord that is 9. The system is either from metal springs or bungee cords. Calculate the spring constant of the bungee cord. 1 out of 5 stars, based on 14 reviews. First, you asked about the forces on a bungee jumper. Lead you through a 4 step process on how to choose your perfect IB Physics IA Topic in under 15 minutes. The tall structure is usually a fixed object, such as a building, bridge or crane; but it is also possible to jump from a movable object, such as a hot-air-balloon or helicopter, that has the ability to hover above the ground. the KE max on bottom causes the spring to go back to the very top where PE is max. Speed of waves in a spring. ; Tinsley, J. The Bungee, if trying to do the health bounce with only going 2 inches over the mat, the bungees don't provide anywhere near the G force as the spring. A bungee jumper jumps from a tall bridge attached to a light elastic cord (bungee cord) of unstretched length L. Bungee Jumping Physics Names: Using the Bungee Jump simulation program Tasks: Start by setting the platform hieght to its minimum (h=10m), the spring constant of the bungee cord to its stiffest setting (k=200 N/m), the length of the bungee cord to its minimum (Lo=5m) and the jumper's mass to its minimum (m=40kg). We recommend you do this early in the week as it is a great way to meet other people during your Spring Break week. Limit trampoline activity. The cord is stretched to a length of 1. Kate’s height is negligible compared to the length of the bungee cord. Let the bridge be at x=-160 feet, and the creek be at x=140 feet. 0 s, what is the spring constant of the bungee cord? Bungee Jumping. Give you a list of excellent (and TERRIBLE) research questions Give you 25 BRILLIANT IB Physics IA ideas at the end of this blog post too. 73 m (see figure below). Unlike a spring, it is assumed that the spring constant of the bungee cord is zero when compressed. The principle of Hooke's law may be used in regards to Bungee jumping. Code to add this calci to your website. The answer given is 22ms^{-2}. The physics behind bungee jumping. 2 Answers to It's your birthday, and to celebrate you're going to make your first bungee jump. To demonstrate this in Nova, the term for restoring spring force contains the following logic: (length > unweighted length) ? -spring constant * (length - unweighted length) : 0. Search Product Result. At The Bungee Store we are committed to providing the best quality bungee cord at the most competitive prices. Jumper Zero Km. I looked at the solutions and I don't understand why gravitational potential energy, mgh, = 80 x 9. The bungee cord,which has length when unstretched, will first straighten andthen stretch as Katefalls. They then free fall, until the cord becomes tight, at which point they spring back slightly and bounce around before coming to a swaying 'standstill'. A bungee jump is a conservative system - or - a system that maintains the same amount of energy from beginning to end. The spring is hanging vertically of course and stretches the spring only 10 m. She is tied to a bungee cord that is 11m long when unstretched, and falls a total of 30m. Kate has a mass surface of the bridge is a height above the water. Trampoline parts, supply and accessories, find all your trampoline parts pads mats enclosures at low prices. At the time, I didn’t understand the physics behind bungee jumping and therefore was unsure about hitting the water. A Cantilever platform built over a iron cliff over looking a rocky river HYUL, a tributory of River Ganga. After bouncing around violently. Now that the spring constant of the new cord is known, the owner (who recently completed a physics course) performs a few quick calculations and then decides to do a trial jump using a 40 m length (unstretched) of the new cord. Each has a different spring constant and mass per length (only applicable if "Bungee Cord Has Mass" is enabled). When we hang Cosmo by the bungee cord, letting him come to rest, we find that the stretched length of the bungee cord is 1. Current Price $409. What is the formula for determining how close to the ground a bungy jumper will be at maximum stretch when you have the following variables? Height of bungee tower: H height of jumper: h Spring constant of cord: k Weight of jumper: w Length of cord: L Also if you could tell me a likely actual value for k it would be appreciated. Weight is the amount of force on an object due to gravity. This is an activity and questions which explain how to use the spring equation (Hooke’s Law), and some questions based around how it is useful when bungee jumping. The Bungee, if trying to do the health bounce with only going 2 inches over the mat, the bungees don't provide anywhere near the G force as the spring. An elastic cable is to be designed for bungee jumping from a tower 130 ft high. Which of the following is the best estimate of the spring constant of the bungee rope? a. To do so, you suspend a weight of 10 pounds from the end of the 100-foot cord, causing it to stretch 1. Constant Contact Use. The principle of Hooke's law may be used in regards to Bungee jumping. Assume the following: The bungee cord behaves as an ideal spring once it begins to stretch, with spring constant k. Students: This will be an in-class report. After bouncing around violently. [citation needed] The Bloukrans River Bridge was the first bridge to be used as a bungee jump launch spot in Africa when Face Adrenalin introduced bungee jumping to the African continent in 1990. Jumps take place every weekend throughout the summer. spring = spring mass •l = unstreatched spring length •k = spring constant •g = acceleration due to gravity •F t = pre-tension of spring •r s = static spring stretch, = 𝑔−𝐹𝑡 𝑘 •r d = dynamic spring stretch •r = total spring stretch +. She is tied to a bungee cord that is 11m long when unstretched, and falls a total of 30m. Limit trampoline activity. Physics Project: Bungee Jumping. We will then enjoy a beautiful 5-mile hike to the bridge, spend the afternoon bungee jumping, and return on the 5-mile hike back, arriving at your car between 3:00-6:00pm depending on the tour size and time of year. In this article we discuss the first phase of bungee jumping, when the bungee jumper falls, but the bungee rope is still slack. To demonstrate this in Nova, the term for restoring spring force contains the following logic: (length > unweighted length) ? -spring constant * (length - unweighted length) : 0. That is, F = - k x, where x = 0 is defined by the equilibrium position of the spring. Ultimate bungee jumping: a straight tunnel is dug all of the way through the earth. SHM Bungee Jumping. Use these values to determine k for the bungee cord. Calculate the maximum acceleration experienced by the jumper. The company also operates the Bridge Café, Bridge Tour, Bungee Shop and a visitor centre. post-8675385968420257848 2014-04-30T07. The length of the unstretched bungee cord is 11m. Calculate the spring constant k of the bungee cord. Leave bungee jumping to the professionals.