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A machine gun fires at the rate of n bullet per second, each of mass m with speed v, then the force of recoil is:

Asked by 13th March 2015, 6:47 PM
Answered by Expert

Hi Tushar,

Change in momentum of 1 bullet = mv

Force of recoil = Rate of change of momentum

n bullets are fired per second

Time for 1 bullet = 1 /n 

begin mathsize 12px style Force space equals space fraction numerator mv over denominator 1 divided by straight n end fraction equals mvn end style 

Answered by Expert 13th March 2015, 6:56 PM
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