Question

N bullets each of mass m kg suffered with a velocity v metre per second at the rate and bullets

Answer 1

Ans- The reaction forced offered by the wall will be equal to the rate of change of momentum of bullet hitting the wall.

The reaction will be..

=final momentum-initial momentum/time

=N{m(o)-m(v)}/t

=N/t(-mv)

(N/t=n=no.of bullet per sec.)

= -nmv