|Jan2-12, 07:47 PM||#1|
ellastic collision w/rebound
1. The problem statement, all variables and given/known data
A 150 kg cart moving at 13 m/s east collided with a 420 kg wagon moving at 5.0 m/s east.
The cart rebounded westward with a speed of 3.0 m/s . What was the speed of the wagon after the collision? Observe standard Cartesian coordinates.
2. Relevant equations
conservation of momentum
conservation of kinetic energy in elastic collisions
3. The attempt at a solution
Answer as given is 11m/s
|Jan2-12, 09:52 PM||#2|
the problem itself doesn't say that the collision is elastic. so just use conservation of momentum here.
|Jan2-12, 10:29 PM||#3|
Conservation of kinetic energy is valid only when coefficient of restitution(e) is 1
here its not specified, so you must use momentum conservation.
if e is given and is ≠1 then you may use:
(v2 - v1) = e(u1 - u2)
|Similar Threads for: ellastic collision w/rebound|
|Ellastic collision between a frame and projectile||Introductory Physics Homework||7|
|Giancoli, 3rd Ed, pr. 55: Ellastic collision. Solved, but is there easier way?||Introductory Physics Homework||2|
|...of which i thought was an ellastic collision problem||Introductory Physics Homework||3|
|ellastic collisions||Introductory Physics Homework||7|
|ellastic collisison||Introductory Physics Homework||4|