Exercise Bungee Cord
Derive Equations for Bungee Jumper! (URGENT)?
A bungee jumper weighting 75 kg jumps from a platform using a 25m elastic cord with
an elasticity constant “k” = 200N/m. The friction between the fibers of the cord leads to a viscous resistance force proportional with the strain rate.
(proportionality constant c = 150Ns).
Strain Rate = v / lo = v / 25
Note: The cord will exercise forces only when extended.
Derive the equations of motion for the jumper, and only consider the vertical motion of the jumper.(g=9.81m/s^2)
——————————————-
I am just a little confused on how to solve this question. I know that it needs to be a piecewise function.
That is about it, I am stumped after that.
Any and all help is welcomed. 
Cheers,
Genie
Use F = ma ==> a = F/m
So, weight is force causing acceleration, and -kx is spring force and -cv is friction force.
a = dv/dt = g – kx/m – 6V/m
now I guess you need to integrate twice to get v(t) and x(t)
|
|
Diggin JumpSmart Trampoline $59.99 This bouncy trampoline doubles as a learning toy, too! Kids will delight in jumping along to fun learning games and silly songs. This electronic mini trampoline is perfect for keeping kids active indoors. Features a five-in-one multi-game sound system that makes learning fun: counting, music and rhythm, sound recognition and memory. The five games included are bounce counting, silly sounds, musica… |
|
|
JumpSport The Fitness Trampoline Model 220 Non-Folding 40-Inch $199.00 Enjoy a fitness regimen that’s fun for the whole family with The Fitness Trampoline 220 from Jumpsport, which offers an elegant look for your home with its silver frame and arching black legs. This 220 model has a 33.5-inch mat diameter and it’s framed by 4-inch Permatron skirt. From black EnduroLast 2 elastic cords to a black frame, this sleek unit is designed to outlast and out-perform any ste… |
|
|
Pure Fun Kid’s First Jumper Trampoline $50.97 Great for beginning jumpers, this child’s trampoline features a safe, no-spring bounce system and a sturdy handle for extra stability. The product is designed to help young kids develop their coordination and balance. It has a heavy-duty yet lightweight construction and a padded cover for added safety. Easy to assemble, the trampoline measures 37.4 inches by 37.4 inches and is covered by a two-yea… |
|
|
Cando Exercise Bungee Cord – Accessory webbing door mount strap, Item- 10-5150 $29.05 Color-coded bungee cords can be used for both upper and lower body exercises. Cords have a snap hook on one end to attach to the D-ring handles, straps or mounts. A multi-fitted color-coded webbing loop AND nub is on the other end. Grip the loop, use as… |
|
|
Cando Exercise Bungee Cord – 7 Foot W/ Carabina, Loop And Door Jamb – Green – Medium $18.97 Color-coded bungee cords can be used for both upper and lower body exercises. Cords have a snap hook on one end to attach to the D-ring handles, straps or mounts. A multi-fitted color-coded webbing loop AND nub is on the other end. Grip the loop, use as a foot stirrup, or place the nub in a door jamb. The Cando bungee system is versatile! Save by purchasing a 5-piece set, which consists of a yell… |
|
|
Cando bungee cord, 4 foot, blue $19.00 Cando bungee cord, 4 foot, blue Cando snap-on exercise bungee cord is color-coded. It can be used for both upper and lower body exercises. Cords have a snap hook on one end to attach to the D-ring handles, straps or mounts. A multi-fitted color-coded webbing loop AND nub is on the other end. Grip the loop, use as a foot stirrup, or place the nub in a door jamb. The Cando bungee system is versatile… |
|
|
Lock Laces Elastic shoelace and locking system that feature specially designed elastic laces combined with a spring activated locking device. Lock laces can be worn with all types of athletic shoes for sports or casual use…. |
|
|
ProSource Set of 3 XTREME Stackable Heavy Duty Premium Latex Resistance Exercise Bands $25.99 Interested in incorporating resistance bands into your workout but turned off by the low resistance levels? Turn to this set of three heavy-duty Xtreme stackable resistance bands, which offer a combined 105 pounds of resistance. Ideal for use with P90X, Insanity, and other high-resistance workouts, ProSource Xtreme resistance bands add serious intensity to your back, chest, arms, and ab workouts. … |
|
|
Petego Walky Dog Hands-Free Bicycle Leash $49.40 Dog Bicycle Leash Stop feeling guilty about leaving your dog alone at home and take them along for a bike ride with PetEgo Walkydog Bicycle Leash. This bicycle leash allows total control to the pet parent on the ride and is a great way of getting your dog to exercise a bit. It is easy to install on the bicycle so you can do it in minutes. PetEgo Walkydog Bicycle Leash Can be easily installed on … |
|
|
Wrist Strap Accessory – used with Cando Exercise Bungee Cords $14.72 Used with Color-coded bungee cords can be used for both upper and lower body exercises…. |
Categories: Uncategorized bungee cord exercise equipment, diving, equipment, exercise bungee cords, scuba, shopping, store
