Question

a machine gun fires a bullet of mass 50 gm with velocity 1000 m/s if average force acting on gun is 200n then find out the max no of bullet fired per minute

Answer 1

mass of each bullet = 50g = 0.05 kg

velocity = 1000 m/s

let the number of bullets per second = n

Average force acting on gun = 200N


Rate of change of momentum = force

=> nmv = Average force

=> n × 0.05 × 1000 = 200

=> 50n = 200

=> n = 200/50= 4


Bullets per second = 4

bullets per minute = 4× 60 = 240

Thus, 240 bullets per minute were fired.

Answer 2

Answer:240 bullets

Explanation:in the attachment