A gun of mass 10kg fires 4 bullets per second. The mass of each bullet is 20 g and the velocity of the bullet when it leaves the gun is `300ms^(-1)`. The force required to hold the gun while firing is

Explanation

Force on the gun`=("momentum change")/("time")=(nmv)/(t)=(4xx20xx10^(-3)xx300)/(1)=24N`
so force required to hold the gun is 24N.