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A ball of mass 'm' moving with a horizontal velocity 'v' strikes the bob of mass 'm' of a pendulum at rest. During this collision, the ball sticks with the bob of the pendulum. The height to which the combined mass raises is (g = acceleration due to gravity).

A

`(v^(2))/(8g)`

B

`(v^(2))/(4g)`

C

`(v^(2))/(2g)`

D

`(2v^(2))/(g)`

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