Question

A steel ball of mass m , moving with velocity u, collides head on with another identical steel ball. The collision is perfectly elastic. What is the maximum elastic potential energy stored in the system during the course of collision?​

Answer 1

Explanation:

Here, a steel ball moving with a velocity

v

ˉ

collides with an identical ball originally at rest. hence, masses of two steel balls are equal. For a head-on collision with a stationary object of equal mass, the projectile will come to rest and the target will move off with equal velocity, thus, the velocity of the first ball after the collision is zero.