Question

A bullet of mass m is fired from a gun of mass M with horizontal velocity v. Calculate the recoil velocity V of the gun .

Answer 1

i hope it will help you

Answer 2

Momentum=mass × velocity

The momentum of a body is conserved

The momentum of the system before firing the bullet=Mm×0=0

Now 0=Momentum of the bullet after firing it + Momentum of gun

0=mv+MV

V=-mv/M

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