In a smooth stationary cart of length d, a small block is projected along it's length with velocity
Channel: Doubtnut
Date: 2020-08-30

In a smooth stationary cart of length d, a small block is projected along it's length with velocity `upsilon` towards front. Coefficient of restitution for each collision is e. The cart rests on a smooth ground and can move freely. The time taken by block to come to rest w.r.t. cart is  : img src="https://d10lpgp6xz60nq.cloudfront.net/physics_images/EAM_MEC_V01_C04_E01_128_Q01.png" width="80%"