A machine gun fires a bullet of mass 40 ...

A machine gun fires a bullet of mass 40 g with a velocity `1200 ms^-1`. The man holding it can exert a maximum force of 144 N on the gun. How many bullets can be fire per second at the most?

One

Three

Two

Four

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The correct Answer is:

`F=(dp)/(dt),F =(mnv)/(t)rArr(n)/(t)=(F)/(mv)`

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