Question

A ball of mass m moving at a speed v makes a
head on collision with an identical ball at rest. The
kinetic energy of the ball after the collision is 4%
of the original. Find the coefficient of restitution.
1) 3/5
2) 2/5
3) 1/5
4) 1/3​

Answer 1

Answer:

2) 2/5

Explanation:

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