A machine gun has a mass of 20kg it fires 35 gm bullests at the rate of 400 bullets per minute with a speed of 400m/s what force must be applied on the gun to keep it in position
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In the given problem,
m g =20kg ; v B =400m/s
mass of the bullet = 30g = 30×10 -3 kg
no. of bullets fired/sec = 400

For t = 1sec.
Total mass of bullets in 1second ,  = (400×30)/1000=12 kg
f=4800N
m g =20kg ; v B =400m/s
mass of the bullet = 30g = 30×10 -3 kg
no. of bullets fired/sec = 400

For t = 1sec.
Total mass of bullets in 1second ,  = (400×30)/1000=12 kg
f=4800N
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