Question

A shell of mass 0.02 kg is fired buy a gun of mass 100 kg if the muzzle speed of the shell is 80 m per second what is the recoil speed of the gun

Answer 1

- 0.016 is the recoil velocity

Answer 2

given
mass of shell(m1)=0.02kg
mass of the gun(m2)=100kg
speed of the shell(v1)=80m/s
required:recoil velocity of the gun(v2)
now from:
m1v1=