Question

NUMERICAL PROBLEM:
A 5gm bullet is fired from 3kg of gun. At a speed of 300 m/s. What is the speed of recoil of gun?

Answer 1

Use Conservation of Momentum.

Answer 2

Conserve Momentum
Momentum of bullet= 5gm*300m/s=>5*10^-3*300=1.5 Kg m/s
let the speed of recoil of gun be x m/s
so
Momentum of bullet= x *3kg=3x Kg m/s
the two momentums are equal so
3x=1.5
x=0.5 m/s

Answer 3

Thnx :)