A machine gun has a mass of 15 kg. It fires 100 gram bullets at the rate of 40 bullets per minute at a speed of 600 m / s. What force is required to keep the machine gun in position?

Question

A machine gun has a mass of 15 kg. It fires 100 gram bullets at the rate of 40 bullets per minute at a speed of 600 m / s. What force is required to keep the machine gun in position? (A) 40 N (B) 50 N (C) 66 N (D) 57 N

Tardigrade Admin · Accepted Answer

Force =( text momentum of bullets × text no. of bullets / text Time ) =(0.1 × 40 × 600/60)=40 N

Q. A machine gun has a mass of $15 k g$ . It fires 100 gram bullets at the rate of 40 bullets per minute at a speed of $600 m / s$ . What force is required to keep the machine gun in position?

$40 N$

$50 N$

$66 N$

$57 N$

Force $= \frac{momentum of bullets \times no. of bullets}{Time}$
$= \frac{0.1 \times 40 \times 600}{60} = 40 N$

Q. A machine gun has a mass of 15kg. It fires 100 gram bullets at the rate of 40 bullets per minute at a speed of 600m/s. What force is required to keep the machine gun in position?

40N

50N

66N

57N