1. Tardigrade
  2. Question
  3. Physics
  4. A machine gun fires 50 gm bullets at a speed of 1000 m / s. The gunner, holding the machine gun in his hands, can exert an average force of 180 newton against the gun. Determine the maximum number of bullets he can fire per minute.

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Q. A machine gun fires $50 \,gm$ bullets at a speed of $1000 \,m / s$. The gunner, holding the machine gun in his hands, can exert an average force of $180$ newton against the gun. Determine the maximum number of bullets he can fire per minute.

Work, Energy and Power

Solution:

mass of bullet $=50$ gram.
speed of bullet $=v=1000\, m / s$.
recoil force $=180\, N$
$F = n ( mv )$
$n =\frac{ F }{ mv }=\frac{180}{0.050 \times 1000}$
$=3.6$ bullet / sec
$ \therefore $ no. of bullets per minute
$ 3.6 \times 60=216 $ bullets / min