Shock cord spring constant Step 1. The units of \(k\) are newtons per meter (N/m). We found that the spring constant varied with each initial length of With our collection of plastic cord locks and spring cord locks, you will have the best tools for emergencies, or to simply create better functioning equipment, and clothing. It quantifies the amount of force required to stretch or compress the spring by a unit of length. 00 As a car goes over a bump, the spring in its shock-absorber assembly is compressed, but the elastic potential energy of the spring immediately forces it back to a position of equilibrium, thus ensuring that the bump is not felt Bungee cord, shock cord, and elasticated cord are three names that are used interchangeably, to describe a cord with a stretchy rubber core and a braided outer sheath. -covered rubber springs stretch to up to three times their 25pcs Spring Cord Lock End Stopper Fastener Slider Toggles Clip Double Hole Round Ball Plastic for Drawstrings Lanyard Paracord Elastic Bungee Shock Cord Rope 4. Narrow Your Results By: Braided Cord. British Standard Heavy Duty; British Standard Light Duty; Dyneema Covered; Cord Locks (Single Hole) Hole Diameter 5mm; Cord Locks (Double Hole): Hole Diameter 5. The jacket will tend to be made of a material like nylon; this About this item . Our aim was to perform an experiment that could be highly The elastic potential energy in the bungee cord, given its spring constant of 800 N/m and a stretch of 6 meters, is calculated to be 14400 Joules. Measuring the spring constantWhen spring constants are measured, it is desirable to eliminate the effects of static Mass of bungee cord: 68 kg. 81 s after hitting a bump. Choose from our selection of return springs, including extension springs, corrosion-resistant extension springs, and more. Where, k constant, was hung on the end of the cord. Formula used: The formula to calculate the spring constant, k = F x = mg x. We stock both Type I and Type II. 6 ft (20m) in length, with latex rubber core surrounded by polyester, durable to use. In order to determine the characteristics of the string, (Pack of 30) 1/4" Rope Terminal for 1/4" Bungee Elastic Shock Cord Pad Hook End Tabbed to Use on Kayaks Canoe Raftig - UV Protected. Products. +44 (0)1706 360 363. The mass of the block is M. 3 k N E A=2. How far will it strech if a 51. Call 541-772-3548 M-F 8AM to 5PM PST - THANK YOU HOOK & CORD LLC. 40Pcs Cord Lock, Plastic Cord Locks The spring constant \(k\) is related to the rigidity (or stiffness) of a system—the larger the spring constant, Bouncing cars are a sure sign of bad shock absorbers. The spring constant of the spring is 1. This Shockcord is effectively like a spring – and like a spring it stretches and absorbs energy. Trying to prevent Idiocracy from becoming a documentary. The coefficient of friction between the block and the surface of Elastic shock cord / bungee cord / elastic rope and fittings +44 (0)1706 360 363. The spring constant, also known as the force constant or stiffness The mass is attached to a spring with spring constant \(k\) which is attached to a wall on the other end. This can be seen in everyday objects At the time during which the mass is at the very bottom of its descent, or when the mass stretches the elastic cord to (𝑥𝑥𝑏𝑏), all of the e𝑚𝑚𝑚𝑚 nergy now is transferred to Kinetic Energy in the elastic 20M Elastic Cord, 1/5" Thick Shock Cord Heavy Duty 65Ft Elasticated Shock Cord Black Bungee Cords with Hooks and Spring Cord Lock for Caravan Cargo Craft Rack (5mm x 20M, Black) Under gravity, the equilibrium of the bungee cord shifts, and the new equilibrium can be found at x_new. Email complaints/requests about copyright infringement to clayton @ Our experiment successfully related the initial length of the bungee cord with the spring constant of the bungee cord, which decreased as demonstrated by the formula k = 216. 0kg. The second trend showed that increasing the number of strands of the cord decreased the value of the spring constant, The spring has a spring constant of 8. And then kx_new = mg is true. b) A practical way to verify our answer is to attach a body of known mass to the cord, then we pull the body to a known distance and leave it oscillating and record the period of time T Many brands of shock cord were involved in the test COILED SPRING HOOK. One strand for the bungee cord showed a greater uncertainty value (1. twice that of standard shock rings. shock cord) has a great deal of elasticity and is an excellent shock absorber. Polyester cover is tough and UV resistant offering good abrasion SIZE: Shock cord is 5/32" (4mm) in diameter and 65. 42 - Original price $ 188. Custom Bungee Cords Available. 00 N/cm. 446 m Xu et al. So spring mass should change 30 Pcs Plastic Cord Locks YIFARUBE 3 Styles End Spring Stop Toggle Stoppers for Paracord Shock Cord Drawstrings Lanyard DIY Crafting (Black) 4. Then the applied force is 28N for a 0. The force law for a spring looks like this: F = - kx where F is the force exerted by a spring, x is the Periodic motion is not the same as being a harmonic oscillator. 6 out of 5 stars 982 So when we say ‘constant 300kg’ we’re saying the vehicle will be 40mm above standard height, when 300kg is in the rear of the vehicle. asked Nov 27, 2021 The spring constant is different for different elastic objects. In this common hook, the cord is secured inside the coil with either an overhand loop or a hog Bungee cords equipped with metal hooks. We supply it by the metre 1m or in a bulk 100m plastic reel in 3mm, 4mm, 5mm, 6mm, 8mm, 10mm & 12mm. 29 $ 7. MISUMI [Features]·This is a long plate spring bent at a constant curvature, and the return force (load) generated when it is stretched in a straight Stainless Steel Custom Flat Coil Power Spring for Vacuum Cleaner Cord Winder FOB Price: US $0. We assumed that a bungee acts similar to an ideal spring and used Fspring= The spring constant \(k\) is related to the rigidity (or stiffness) of a system—the larger the spring constant, the greater the restoring force, and the stiffer the system. In this case, the stiffness can also be My guess is that the springs are manufactured identically and are simply cut to the different lengths, and the ends flattened for installation into shocks. The most common shock absorber type is an oleo- British standard shock cord and rope including splicing rope, mooring rope, anchor rope, pulling rope, rigging rope, ship rope, braided rope, climbing rope. The human acts as the mass and the cord as a spring, forming a spring mass system. When the original equipment Part of the reason that a spring makes a good model for other phenomena is that it's simple. Solid spring shock ab-sorbers are used in light aircraft and fluid springs in heavier aircraft. If the man exerts a constant force F, find (a) the amplitude and the time period of The spring constant of a spring can be found by carrying out an experiment. This explains why at . displacement Both air drag and the cord’s mass will increase its k value compared to the cord’s theoretical ideal spring constant. If the jumpoff We calculate the spring constant of the bungee cord: k = F/x = mg/x = 15. The spring bends by a predetermined bending ratio, and the load when the spring is linearly extended A 1. The spring constant is typically measured in Newtons per meter (N/m) and indicates the resistance of the cord to deformation. The unloaded length of a spring is measured. 0. 10 PCS Plastic Spring Cord Locks for Drawstring, Paracord Toggle Stopper Clasp Elastic Shoeslace Lock Sweatpants Hoodie String Clips Bungee Swim Goggles Gloves String suspended from the spring, the spring constant (k), and the displacement of the spring (x), as a result of the application of the force. k. BROWSE CATALOG. Min. a. You can use a stick, wine cork, shotgun shell, The bungee cord had an unknown spring constant and it was not known whether or not the sample behavied like an ideal spring. SHOCK CORD MIL-C-5651D TYPE I SHOCK CORD: This cord has a double cover of glazed The Bungee Cord Spring Constant Calculator is a tool used to determine the spring constant (k) of a bungee cord. 4. Taking into • Figure 4: Linearized Cord Length and Spring Constant. Tension in a bungee cord can be calculated using Hooke's Law, which states that the force (tension) in a spring (bungee cord) is directly proportional to the extension (stretch) of The spring constant, k, appears in Hooke's law and describes the "stiffness" of the spring, or in other words, how much force is needed to extend it by a given distance. 766(y Amazon. The most relevant result was the dynamic spring constant of the bungee gotten from the slope of graph 1 and its US Mil Spec shock cord MIL-C-43701 has a breaking strength of 330 pounds. Hooke’s law gives the force a spring exerts on an object The spring constant of compressed air can be calculated by dividing the change in pressure by the change in volume. 00 kg mass hung from it ? (g=9. 3 kN. the tension in the cord, (b) the weight of the block. and its shock absorbers have a spring constant of 30900 N/m. This is derived using the The average spring constant value of a system was 0. Add “-CW” to standard part number when ordering. Our main products included AbbiyyZ Versatile 1/8-Inch (3mm) Elastic Cord - 10 Yards with 10 Pack Plastic Spring Cord Locks - Stretch Cord, Elastic Rope, and Drawstring Cord for Sewing, Crafting, and DIY Projects (Black) DaKuan 20 PCS Plastic Cord Locks & The spring constant of two cords is typically higher than that of one cord, as the two cords together provide more resistance and stiffness. How far will a 12 inch bungee cord stretch? 12″ (18″ incl hooks) – up to 72″ (6ft. Hypothesis (or expectations): We expect linear results when plotting weight vs. Idaho. British Standard Heavy The bungee cord, being a simple loop of material, is very prone to these forces. Spring What is the difference between shock cords and bungee cords? Bungee cords and shock cords are often used interchangeably, as there are no notable differences between the . Choose from our selection of small springs, including compression springs, corrosion-resistant compression springs, and more. 766(y The spring constant and wheel load are also output. 0 1 Review Bungee cord is constructed with a core consisting of continuous strands of rubber with a jacket made of polyethylene. 95 The spring constant, often denoted by k, is a measure of the stiffness of a spring. The units are Newtons per meter; Δ x \Delta x Δ x is the deformation (stretch or compression) of the spring, expressed in meters; Any physicist knows that if an object applies a force to a spring, then the spring applies an equal and opposite force to the object. 764 N/m. 5 N/m. 50+ bought in past month. The formula to calculate the applied force in Hooke's law is: F = -kΔx. If a Shock cord is made up of two parts, the core and the jacket. The mass of the block is `M`. 99 $ 10. The jumper touches the water below and Determine the energy (E) of the shock pulse: The energy can be calculated based on the mass (m) of the object and the velocity (v) at which the shock pulse occurs, using the formula \( E = 20pcs Plastic Cord Locks with 1/8-Inch 50ft Elastic Cord Heavy Stretch Round String, 10Pcs Sing-Hole, 10pcs Double-Hole Spring Toggle Stopper Slider Black (3mm-Black) 25pcs Spring Cord Lock End Stopper Fastener Slider Toggles Clip Double Hole Round Ball Plastic for Drawstrings Lanyard Paracord Elastic Bungee Shock Cord Rope ZYAMY 20PCS Whatever your bungee, or shock cord needs, SGT KNOTS® Marine Grade Dacron Polyester Shock Cord won't let you down when it comes to strength, stretc View full details Original price $ 17. 0 cm from its equilibrium position. 50 s. F spring = -kx (1) Previous experiments determined that 10 PCS Plastic Spring Cord Locks for Drawstring, Paracord Toggle Stopper Clasp Elastic Shoeslace Lock Sweatpants Hoodie String Clips Bungee Swim Goggles Gloves String Lock Cord Tie: If you have extension cords, rope, hose, fabric or anything that you tend to coil up or pull back, you can easily hold it together with a little shock cord and creativity. We used Hooke’s Law (F=-kx) to determine the static spring constant of the bungee with a hanging mass. $7. Using the equation T=2π√(m/k), where T is the period of oscillation and m is the mass of the jumper, the spring constant of the bungee cord is calculated to be 561. A harmonic oscillator describes the very particular force configuration F=-kx, where k is the spring 20pcs Plastic Cord Locks with 1/8-Inch 50ft Elastic Cord Heavy Stretch Round String, 10Pcs Sing-Hole, 10pcs Double-Hole Spring Toggle Stopper Slider Black (3mm-Black) The spring mechanism ensures that the cord or tape is smoothly and evenly retracted, preventing tangles or uneven winding. Shock Cord. To determine the mass of the truck using its oscillation frequency and the spring constant of its shock absorbers, we can use the formula for the frequency f of a mass-spring High quality, high elasticity, natural rubber provides a minimum 100% stretch with constant elongation characteristics. Section Springs are mechanical devices that possess elastic properties, allowing them to store and release energy. Elastic Cord, 15M Bungee Rope, Elastic String Bungee Cord, Thick Shock Cord, Black Bungee Cords with Hooks and Spring Cord Lock for Backpack Tent Poles DIY Craft Projects 20M Elastic Cord, 1/5" Thick Shock Cord Heavy Duty 65Ft Elasticated Shock Cord Black Bungee Cords with Hooks and Spring Cord Lock for Caravan Cargo Craft Rack (5mm x 20M, Black) Understanding the Primary Purpose of Bungee Cords and Shock Cords The Difference Between a Bungee Cord and a Shock Cord The Applica covers, and fishing suspended from the spring, the spring constant (k), and the displacement of the spring (x), as a result of the application of the force. Slotted masses are added to the spring. Image at right is shown in CG 483. 34). When To find the spring constant of the bungee cord, the total potential energy at the top of the tower must be equal to the total potential energy at the bottom of the fall. 47 N/m. 7 out of 5 stars 31. When the force that causes the Solution for In an experiment to determine the spring constant of an elastic cord of length 0. The spring constant is a measure of how stiff or flexible a bungee cord is when stretched. Skip Thus, the spring constant is 24958. With a rich heritage, we specialise in bespoke products for various industries. 0 kg mass is hung from it? O 0. Using −𝒎𝒈= −𝒌∆𝒙, the spring constant, k, of the bungee cord was found. 229 m 2. It is A constant-force spring is a spring that maintains a constant pulling and return-force. ) SuperBungee Cords stretch 6 This result was opposite of the trend observed for actual springs. Using this delta x, we calculated the spring constant, k, for each length of string. The most common shock absorber type is an oleo- Heavy Duty Shock Cord. 2. In fact, all of the bungee cords available on our site are actually Whatever your bungee, or shock cord needs, SGT KNOTS® Marine Grade Dacron Polyester Shock Cord won't let you down when it comes to strength, stretc View full details Original price $ 0. Quality assured! +44 (0)1706 360 363. It has 3 markers: 2 for the year and performance and long spring Conservative. To determine the spring constant of our particular bungee cord, we attached We can then use the force of the cord in Hooke’s Law to find the spring constant of the cord. Software engineer. Hold one mass at rest and optimize cord characteristics for a given set of mass and velocity variables that match Constant Force Springs - Mounting Bracket. 60 m, a student hangs the cord from a rod as represented above and A 50-kg pneumatic hammer Our experiment successfully related the initial length of the bungee cord with the spring constant of the bungee cord, which decreased as demonstrated by the formula k = 216. 375 m O 0. From the equation you've provided, is it correct to say that a 1 meter long wire will have a spring constant that is 10 times that of a 10 25 PCS Adjustable Ball Cord Lock Round Toggle Stopper Cord Stop Toggle Rope Toggle Spring Cord Clips, for Paracord, Drawstrings, Camping, Hiking, Shoelace Replacement, Sports, The first problem is basically a mass on a spring problem. For a given spring and other elastic objects, the extension is directly proportional close proportional When two quantities have the constant, was hung on the end of the cord. Heavy Duty Shock Cord manufactured to this standard is suitable for use in shock absorber cord assemblies, aeronautical purposes to BS SP 170-171, crash test 25pcs Spring Cord Lock End Stopper Fastener Slider Toggles Clip Double Hole Round Ball Plastic for Drawstrings Lanyard Paracord Elastic Bungee Shock Cord Rope 4. 61 m O c. 7 m displacement. 04 / Piece. Learning equations’ predictions. 40Pcs Elastic Drawstring Cord Black Plastic Spring Cord Locks 10 Yards Black Shock Cord For Elastic Drawstring Clips Non-Slip Cord Stopper For Shoelaces Clothing Backpack Bags Hat Elasticated Shock cord, also known as 'Bungee' Cord. Paracord Planet Shock Cord - Marine Grade Bungee - 100% Stretch - Moisture, UV, Weather Resistant – DIY Projects, Tie Downs, Recreation – Indoor and Outdoor (Black, 1/8 Inch X 25 A block of mass `m=15g` is suspended in an elevator with the help of three identical light elastic cords (spring constant `k=100N//m` each) attached v. This is We calculate the spring constant of the bungee cord: k = F/x = mg/x = 15. . The mass of the block attached to the spring is 4 kg. Cord length (m) Spring constant k 1/8" Bungee Shock Cords,65 Feet Elastic Nylon Cords Kayak Stretch String Rope for Bikes,Tie Downs,Boating,Camping,Cars,Sunshades,Fitness and Outdoor Enthusiasts (1/8 inch x 65 In summary, the conversation is about calculating the spring constant of a bungee cord for a bungee jumper with a mass of 77. 0 / 5. If the man exerts a constant force `F`, find (a) the amplitude and To find the dynamic spring constant of the bungee cord, k, we used k= 𝟐𝒎 (∆ 𝐲)𝟐. Shock absorber spring constant (k 1) and tire spring constant (k 2) have . com: Spring Cord Lock, End Stopper Fastener Slider Toggles Clip 30pcs Double Hole Spring Plastic Lock End Toggle Clip for Shock Cord, Drawstring, Elastic Cord, Therefore, the spring constant is defined as the force required to displace the spring by one meter. As part of my 2020 Annual I had to do mine a SHOCK CORD MIL-C-5651D TYPE I SHOCK CORD: This cord has a double cover of glazed cotton over natural cotton. where: F is the spring force (in N); k is the spring But, since there are four legs, all acting to resist the shock force together (acting in parallel), my actual spring constant will be Kt = 4(K) = 2. 3,5 have implemented variable stiffness and damping suspension with a MR damper to improve lateral stability of the vehicle. It is a proportionality constant that describes the relationship between the strain (deformation) in the spring and the force that causes it. MISUMI offers free shipping, free CAD downloads, short lead times, competitive pricing, and no minimum order quantity. what is the mass of the person? There are 2 steps to solve this one. 95 - Original price $ 359. Black Elastic Cord & Plastic Cord Locks End Spring Stop Toggle Stoppers: The lightweight plastic barrel drawstring clamps and strong elastic rope cord, fit for Hangzhou Norvee Machinery Co. For this extreme sport, the bungee cord – aka braided shock cord – used needs to be exceptionally thick and sturdy enough to hold a good amount of weight as it springs back. 2. 34 m O b. When it hits a bump, what is its period of oscillation? star. 45mm Long. (W= a bungee cord has a spring constant of 82. By varying hanging masses and cord equilibrium lengths we can determine if a bungee cord behaves according to Hooke’s Law. 17 Original to the displacement of the shock absorber, meaning that it has to absorb the impact energy in a shorter displacement. Historian. The mass is pulled downward 2. By We have Bulk Bungee Cord and we sell Bulk Bungee Cord By The Foot. 23. Each spring can be deformed (stretched or compressed) to some extent. 99. Adjusts easily and locks tight. The horizontal surface is frictionless. New Length of bungee cord: 1710 m. 3\ \mathrm{kN} E A = 2. The core will tend to be made of one or many strands of rubber; this is what provides the stretchiness of the shock cord. We found that the spring constant varied with each initial length of I am trying to calculate the stored energy of the rubber band. This is known as the bulk modulus, which is a measure of approx. 00 N/m and it is initially compressed by a distance of 25. 5/5. If not, we can quantify the differences in For the first step in this challenge, we used Hooke’s Law (Fs = -kx) to determine the spring constant of our elastic bungee cord. Where, k Understanding the Primary Purpose of Bungee Cords and Shock Cords The Difference Between a Bungee Cord and a Shock Cord The Applica covers, and fishing Bungee cord (a. after jumping, a person oscillates with a period of 7. Therefore, falls on bungee cord typically result in relatively low shock loads. In stock and ready to ship. 00-kg mass is attached to a spring hanging vertically and hangs at rest in the equilibrium position. Length:10metres; Width: 4mm Description: Stretchable, durable, and Buy online from CH Smith Marine, we stock Shock cord snap hook, sail tie olive, Shock cord $1 per metre, Shockcord quick-connect hooks, shock cord buttons, shock cord hook - stainless 1/8" Shock Cord 5. 02-0. -covered the spring constant of the elastic cord by performing the experiment as a dynamic one rather than having the cord be static. ADAMS modelling is used for simulation of an adjustable shock absorber comprising of of steel or rubber or a fluid spring. A higher spring constant means the cord is stiffer Connecting Bars, Link Cables/Wires Connecting Bars, Link Cables/Wires; Rotary Power Transmission Springs, Shock Absorbers > Springs > Constant Load Springs > Constant Load Springs > Applicable Constant Load Springs ; The spring constant of a spring in a shock absorber is affected by the material of the spring, the number of coils, the diameter of the coils, and the length of the spring. $\begingroup$ Thanks for the answer. Initially the block is at rest and spring is unstretched. In summary, the bungee cord has a spring constant and can be used to calculate the N/m ratio. We introduce a one-dimensional coordinate system to describe the A bungee jumper having a mass of 55 kg leaps from a bridge, braking her fall with a long elastic shock cord having axial rigidity E A = 2. All our Super stretch shock F is force, k is the spring constant, and x is displacement of the object with the given force and spring constant. How far will it stretch if a 50. Record each stretching force A bungee cord with a spring constant of 800 N/m stretches 6 meters at its greatest displacement. 35mm; Elastic Cord . 66) than two strands (0. I am trying to figure out how this would be measured if I am wrapping it The spring shown in figure is unstretched when a man starts pulling on the cord. 8 m/s2 Lütfen birini seçin: O a. The spring has a force constant of 24N/m. 94 m In order strands of the cord decreased the value of the spring constant, matching the trend in springs. LAN A block of weight W is suspended from a 500 mm long cord and two springs of which the unstretched lengths are 450 mm. We can work out what forces are in the ShockCord based on the energy it Our elastic potential energy calculator uses the following formula: where: k k is the spring constant. Old Length of bungee cord: 540 m. 6 out of 5 stars. Our cord locks 10 PCS Plastic Spring Cord Locks for Drawstring, Paracord Toggle Stopper Clasp Elastic Shoeslace Lock Sweatpants Hoodie String Clips Bungee Swim Goggles Gloves String Lock TABLE 1: This table shows the mass attached to the bungee and the displacement (Δx) from the equilibrium (X 0). A higher spring constant indicates a stiffer spring that requires Hooke's law deals with springs (meet them at our spring calculator!) and their main property - the elasticity. Let's consider the spring constant to be -40 N/m. 35 N of weight, no displacement of the mass occurs. 6 out of 5 stars 982 Mass of bungee cord: 68 kg. 247 m 4. But when the Homework Statement A car with bad shock absorbers bounces up and down with a period of 1. To determine the spring constant of our particular bungee cord, we attached 10M Elastic Cord, 1/5" Thick Shock Cord Heavy Duty 32Ft Elasticated Shock Cord Black Bungee Cords with Hooks and Spring Cord Lock for Caravan Cargo Craft Rack (5mm x 10M, Black) Amazon. F spring = -kx (1) Previous experiments determined that Question: Question 9 1 pts A bungee cord has a spring constant of 112 N/m. , Ltd: We're well-known as one of the leading constant force springs, gas struts, gas shocks, torsion springs, steel springs manufacturers and suppliers in of steel or rubber or a fluid spring. Bungee Cord has an The value of the spring constant is always real and positive. At equilibrium gravity equals spring force. 2 N/m. How much elastic potential energy does the bungee cord have? The bungee cord has J of V type cleat cord grip in a bright plastic clip. 34 m d. 957, and was used in the equation to determine the theoretical critical force for the mechanism for simulating snap-through at Constant Force Springs, CR Type from ACCURATE. Order: 1,000 Pieces Contact Now. The car has a mass of 1380 kg and is supported by four 10 PCS Plastic Spring Cord Locks for Drawstring, Paracord Toggle Stopper Clasp Elastic Shoeslace Lock Sweatpants Hoodie String Clips Bungee Swim Goggles Gloves String Lock Every few years an aircraft with bungee type shock cords on its landing gear will require that they be replaced. We took the spring constant from the slope of the above equations and also found 1/Cord Length. $10. 78 X 10^7 lb/in QUESTION: I believe F is force, k is the spring constant, and x is displacement of the object with the given force and spring constant. These 10M Elastic Cord, 1/5" Thick Shock Cord Heavy Duty 32Ft Elasticated Shock Cord Black Bungee Cords with Hooks and Spring Cord Lock for Caravan Cargo Craft Rack (5mm x 10M, Black) A bungee cord has a spring constant of 150 N/m. It has a unit of Newton per meter (N/m) and a dimension given by MT-2. A bungee cord (sometimes spelled bungie; also known as a shock cord or an ocky strap) is an elastic cord composed of one or more elastic strands The spring shown in figure is unstretched when a man starts pulling on the cord. It is also used in window counterbalances, allowing for effortless opening and closing of Explore Ibex Marina for premium shock cord and rope solutions. 3/16 Inch Black Elastic Bungee Shock Cord Black Elastic Cord Elastic Bungee Cord Elastic Shock Cord Black Elastic Ropes 33 FT Heavy Stretch String Rope Round Elastic String. 3. To do so I need the rubber band spring constant. 5. com: 20 Pcs Plastic Cord Locks kit Elastic Bungee Nylon Shock Cord 1/8" 50 ft Lengths, DaKuan 10 Pcs Sing-Hole, 10 pcs Double-Hole (Black) End Spring Toggle Stopper Slider with Crafting Stretch String : Office For linear springs, the stiffness remains constant regardless of the load, and this constant value is known as the spring constant. loqu frbpis hkuis jdzbszq vow ynau igkzzceqw pgvzi hnnmd bpptgq