Question

A machine gun fires a bullet of mass 50 g with a velocity of 500 ms. The man holding it can exert a maximum force of 150 N on the gun to
keep it stationary. The maximin number of bullets that he can fire per second is
O 6
O7
02​

Answer 1

Explanation:

I hope this helpful for you

any interesting qs pls ask me

Answer 2

Answer:

The number of bullets man can fire will be 6.

Explanation:

Given;-

        Mass of bullet, m = 50 g

     Velocity of bullet, v = 500 m/s

         Force on man, F = 150 N

Let the number of bullets man can fire per second be 'n'.

Now, we know that;-

  Force on Man = - Force on bullet

                    F  = dP/ dt [where P = momentum] ... by formula.

                     F = mv - 0/ t  [since, initial momentum = 0]

                     F = ( mv/t ) × n [where, n = number of bullets]

                 150 = 50 × 500 × n / 1000 × 1

                 150 = 25 × n

                     n = 150/25

                    n = 6

Hence, the man can fire 6 bullets per second.

Hope it helps! ;-))