Question

Bullet fire with velocity 1200 exert force 144n having mass 40g how many bullets can fired from gun per second

Answer 1

Mass = 50 gm = 50 *10^(-3) kg,

Velocity = 1200 m/s,

( Recoil)F = 180 N

(nMV- 0)/ 1second = F,

Answer is 1 second because we have to get bullets per second and n is number of bullets.

(n* 50*10^(-3)* 1200 - 0)/ 1 = 180

Therefore, n = 3.