Question

A small cart and one of larger mass collide and rebound off each other. The carts were initially moving with the same speed. Which one changes its velocity the most during the collision? They both have no change in velocity. The small cart changes its velocity the most. They both have the same change in velocity. The large cart changes its velocity the most.

Answer 1

the collision is elastic as the carts rebound off each other.

by conservation of momentum, the small mass will have a larger change in velocity.

so the ans is The small cart changes its velocity the most.