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A pendulum consists of a wooden bob of m...

A pendulum consists of a wooden bob of mass `m` and length `l`. A bullet of mass `m_(1)` is fired towards the pendulum with a speed `v_(1)`. The bullet emerges out of the bob with a speed of `(v_(1))//3` and the bob just completes motion along a vertical circle, then `v_(1)` is

A

`(3)/(2)((m)/(m_(1)))sqrt(5gl)`

B

`((m)/(m_(1)))sqrt(5gl)`

C

`(3)/(2)((m)/(m_(1)))sqrt(gl)`

D

`(3)/(2)((m_(1))/(m))sqrt(5gl)`

Text Solution

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The correct Answer is:
A
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