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A railway flat car has an artillery gun ...

A railway flat car has an artillery gun installed on it. The combined system has a mass `M` and moves with a velocity `V`. The barrel of the gun makes an angle a with the horizontal. A shell of mass `m` leaves the barrel at a speed `v` relative to the barrel. The speed of the flat car so that it may stop after the firing is

A

`(mv)/(M+m)`

B

`((Mv)/(M+m))cos alpha`

C

`((mv)/(M+m))cos alpha`

D

`(M+m)v cos alpha`

Text Solution

Verified by Experts

The correct Answer is:
C
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