Question

A machine gun fires 360 bullets per minutes each bullet moves with a velocity of 600 m/s. If the power of gun is 54 kW mass of each bullet is:
A. 5 kg. B. 0.5 kg C. 0.5 x 10^ -3 kg D. 0.0025 kg

Answer 1

F=n/t×mv here power =work done /time and work is force×velocity so we get force =360/60×m×600 we get 3600m=F

F×v/t=p and power=54000W

54000=3600×600m/60

So we get approx 0.5 kg

Is it correct pls answer