Question

A bullet of mass 0.16 kg fired from a gun with velocity 80m/s.Mass of gun is 16 kg.Find the recoil velocity of gun. solve it please

Answer 1

This is based on the conservation of momentum, according to this the momentum of bullet should be equals to momentum of gun.

Pbullet = Pgun

P= mv

Mass of bullet is 20 gm= 0.02 kg , velocity= 400m/sec

Mass of gun = 8kg, and let velocity is V 

So, 0.02×400 = 8×V

So, V= 1 m/sec

This is the recoil velocity of gun