Question

Calculate the change in momentum of a body wulghing 5 kg when its velocity decrease from 20 m/s to 10 m/s

Answer 1

here,initial momentum=5×20kgm/s
=100kgm/s
and,final momentum=5×10kgm/s
=50kgm/s
therefore change in momentum=(100-50)kgm/s
=50kgm/s