Question

Calculate the change in momentum of a body weighing 5 kg when it’s velocity decreases from 20 m/s to 0.020 m/s

Answer 1

M = 20 kg

V 1 = 20 m / s

V 2 = 0.02 m / s

Change in momentum = m ( V 1 - V 2 )

= 20 ( 20 - 0.02 )

= 20 ( 19 . 98 )

= 399.6