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A ball of mass 0.2 kg rests on a vertica...

A ball of mass `0.2` kg rests on a vertical post of height `5 m`. A bullet of mass `0.01 kg`, travelling with a velocity `V m//s`in a horizontal direction, hits the centre of the ball.
After the collision. the ball and the bullet travel independently. The ball hits the ground at a distance of `20 m` and the bullet at a distance of `100 m` from the foot of the post. The initial velocity `V` of the bullet is

A

`250 ms^(-1)`

B

`350 ms^(-1)`

C

`400 ms^(-1)`

D

`500 ms^(-1)`

Text Solution

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The correct Answer is:
D
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