Question

A sphere A impinges directly on an identical sphere B at rest. If coefficient of restitution is e, the ratio of velocities of A and B after collision is 1) 1 e 1 e  2) 1 e 1 e  3) e 1 e  4) 2e 1 e

Answer 1

Answer:

Explanation:

By momentum conservation

mu = mv1 +mv2

u  = v1+v2 --------1

co eff of restitution

e = v1 - v2 / u

u = v1 - v2 / e -------2

Putting 1 in 2

v1/ v2 =  1-e/ 1+e