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A circket ball of mass m is bowled at a ...

A circket ball of mass m is bowled at a batsman and gets to the bat travelling at v m/s. The batsman hits the ball and it leaves his bat after t seconds at a speed of v/2 m/s. The magnitude of the force on the ball in newtons is

A

`frac9mv)(2t)`

B

`frac(2m)(3vt)`

C

`frac(2mv)(t)`

D

`frac(3mv)(2t)`

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