Question -
Answer -
Mass of the gun, M = 100 kg
Mass of the shell, m =0.020 kg
Muzzle speed of the shell, v =80 m/s
Recoil speed of the gun = V
Boththe gun and the shell are at rest initially.
Initialmomentum of the system = 0
Final momentum of the system = mv – MV
Here,the negative sign appears because the directions of the shell and the gun areopposite to each other.
Accordingto the law of conservation of momentum:
Finalmomentum = Initial momentum
mv – MV = 0
