Question

A body collides with wall nd rebounds with same speed..Then change in momentum is

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 - MV

= -2MV

As simple as that. If any doubt persists, feel free to ask me again.

Cheers!