Question

A body of mass .2 kg collides against a wall with a velocity 4m/s and rebounds with same speed . Its change in momentum is..

Answer 1

Answer:

-16Ns

Explanation:

U=4m/s

V=-4m/s (since the direction is opposite)

Change in momentum=m(v-u)

=2(-4-4)

=2*-8

=-16