Car A mass=1000kg moves to the right along a level straightroad at a speed of 6m/s. It collides directly with car B mass=200kgin completely or perfectly inelastic collision. What is themomentum after the collision if car B was initially at rest? a. zero b. 6000kg m/s to the right c. 2000kg m/s to the right d. 10000kg m/s to the right e. none Can someone help me out with this problem and show me thesteps? Thank You! Car A mass=1000kg moves to the right along a level straightroad at a speed of 6m/s. It collides directly with car B mass=200kgin completely or perfectly inelastic collision. What is themomentum after the collision if car B was initially at rest? a. zero b. 6000kg m/s to the right c. 2000kg m/s to the right d. 10000kg m/s to the right e. none Can someone help me out with this problem and show me thesteps? Thank You!
Explanation / Answer
Mass of car A is m = 1000 kg mass of car B is M = 200 kg Initial velocity of car A is u = 6 m / s Initial velocity of car B is U = 0 m/ s Let the combined velocity of the cars after collision be v then from law of conservation of momentum , m u + MU = ( m+ M) v from this v = m u / ( m + M ) = 5 m / s