Question

A machine gun of mass 10kg fires 30gm bullet at the 6 bullet per second each with velocity 400m/s. find the recoil velocity of the gun?​

Answer 1

Answer:

Given, m2=10 kg ; m1 =30 g,v1=400 m/s

Number of bullets fired/second =6

F=?

We know, F= rate of change in linear momentum

∴F=time

change in linear momentum In t=1s, total mass of bullets fired

=30×6=180 g

=180×10−3kg

So, F= 1180×10−3×400=72 N

Explanation: