Question

A body of mass m collides against a wall with the velocity v and rebounds with the same speed the change in momentum is m

Answer 1

Hey there,

Given,

Mass = M

Initial velocity = V

Final velocity = -V

(Negative sign indicates the change in direction)

Final momentum = mass*final velocity = -MV

Change in momentum

= final momentum - initial momentum

= -MV - MU

= -2M