Question

A machine gun fires a bullet of mass $65g$ with a velocity of $1300m/s$. The man holding it can exert a maximum force of $169N$ on the gun. The number of bullets he can fire per second will be:

• A. $1$
• B. $2$
• C. $3$
• D. $4$

Answer 1

The correct option is B $2$

$F_R=NmV$

where $F_R$=restoring force

N= Number of bullets per second

m= mass of bullet

V= velocity of bullet

$\therefore 169=N\times 0.065\times 1300\Rightarrow N=2$