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A gun (mass=M) fires a bullet (mass=m) ...

A gun (mass=M) fires a bullet (mass=m) with speed `v_r` relative to barrel of the gun which is inclined at an angle of `60^@` with horizontal. The gun is placed over a smooth horizontal surface. Find the recoil speed of gun.

A

`V=(1)/(2)(mV_(r))/((m+M))`

B

`V=(1)/(2)(mV_(r))/((m-M))`

C

`V=(1)/(2)(MV_(r))/((m+M))`

D

None of the above

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The correct Answer is:
A
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