A machine gun fires 360 bullets per minute. Each bullet has a mass of 5 grams and travels at 600 m/s. What is the power of the gun? (Assume no loss of energy and 100% power transmission)

900 W

No. of bullets fired per second = 360/60 = 6

Power of the gun is completely transmitted to bullets.

Power (P) = Power of bullets in 1 second

   = [(1/2 x m x v²) x 6] / 1

m = 5 x 10^-3 kg

v = 600 m/s

P = (1/2 x 5 x 10^-3 x 600² x 6) / 1

   = 900 W.