Question

A 50g bullet is fired from a 10kg gun with a speed of 500m/s. What is the speed of recoiling of gun

Answer 1

Answer:

2.5m/s

Explanation:

50 gram=0.05 kg

law. of conservation of momentum

m1u1=m2u2

m = mass

m1=0.05kg

m2=10 kg

u1=500m/s

u2=recoil velocity

0.05 x 500 =10 x u2

u2=25/10

u2=2.5m/s

therefore recoil velocity of the gun is 2.5m/s