Question

A bullet of mass 20g is horizontallying fired with a velocity of 150m/so from a pistol of mass 2kg what is the recoil velocity

Answer 1

Momentum of bullet = Momentum of gun
Mass of bullet ×Velocity of bullet = Mass of gun × recoil velocity of gun
20× 150=2000×x
20×150/2000=x
Hence x= 1.5