Physics

Problem

A machine gun of mass 10 kg fires 20 g bullets at the rate of 180 bullets per minute with a speed of

100 \text{ m s}^{-1}

each. The recoil velocity of the gun is: (a)

0.02 \text{ m/s}

(b)

2.5 \text{ m/s}

(c)

1.5 \text{ m/s}

(d)

0.6 \text{ m/s}