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Velocity of the ball A after collision w...

Velocity of the ball A after collision with the ball B as shown in the figure is (Assume perfectly inelastic and head - on collision)

A

`(3)/(7)m//s`

B

`(5)/(7)m//s`

C

`(1)/(7)m//s`

D

Zero

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The correct Answer is:
D
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