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A machine gun fires 25g bullets at the r...

A machine gun fires `25g` bullets at the rate 600 bullets per minute with a speed of `400m//s`. Calculate the force required to keep the gun position

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Here, `m=25 g = 25xx10^(-3) kg , n=(600)/(60)= 10` bullet/sec, `v=400m//s, F=?`
F= rate of chang e of momentum of bullets = n m v `= 10xx25xx10^(-3)xx400=100N`
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