Question

a gun mass 5kg fires a bullet of mass 25 gm at speed of 450ms .what is the recoil speed of gun​

Answer 1

Explanation:

Let mass and velocity of ball be m1=0.05kg and velocity v1=200m/s.

Let mass of gun be m2=5kg and recoil velocity be v2

Use conservation of momentum.

m1v1=m2v2

(0.05)×(200)=(5)v2

V2=2m/s.

Hence,the recoil speed of fun is 2m/s.