Question

a gun of mass Mkg fires a shell of mass 1.5kg with velocity of 150 m/s and recoils with a velocity of 1.5m/s.calculate the mass of the gun

Answer 1

Momentum of the bullet = momentum of the gun

Momentum = mass × Velocity

Substituting we have :

M × 1.5 = 1.5 × 150

1.5M = 225

M = 225/1.5 = 150 Kg