Question

A machine gun fires 120 bullets per minute. the mass of each bullet is m and its velocity is v.the force exerted on the gun is

Answer 1

Explanation:

momentum of bullets=mass of one bullet×speed

of one bullet×no of bullets fired per unit time

so,

mass of one bullet=m

speed of one bullet=v

bullet fired=120

time taken=60 sec

force=120×v×m/60=2mv