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Two sphere A and B of equal masses lie o...

Two sphere `A` and `B` of equal masses lie on the smooth horizontal circular groove at opposite ends of diameter and at the end of time 't','A' impings on 'B' . If 'e' is the coefficient of restitution, the second impinge will occur after a time

A

`(2t)/(e )`

B

`(t)/(e )`

C

`(pi t)/(e )`

D

`(2pi t)/(e )`

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A
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