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
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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
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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