A boy of mass 60kg jumps off a truck of mass 140kg travelling at 7.7m/s. If the boy runs towards the truck with a velocity of 2.5m/s, calculate (a) the momentum of the truck before the boy jump off (b)

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asked Nov 9, 2022 16.9k views

16 votes

A boy of mass 60kg jumps off a truck of mass 140kg travelling at 7.7m/s. If the boy runs towards the truck with a velocity of 2.5m/s, calculate

(a) the momentum of the truck before the boy jump off
(b) The momentum of the boy on jumping off the truck
(C)the loss of kinetic energy the moment the boy jumped off.