Question

A fast moving truck loses momentum equal to 2 Kg m/s after colliding with a stationary car.
Will the car lose or gain momentum? How much momentum is lost or gained by the car if the
truck comes to the rest after collision?

Answer 1

HEY MATE, HERE IS YOUR ANSWER,


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according to the law of conservation of linear momentum,
momentum before collision=momentum after collision

therefore as the truck loses momentum of 2 kg m/s,the car will gain the same amount of momentum.
therefore ,the momentum gained by the car =2 kg m/s

Answer 2

GIVEN:-

Momentum of truck=2kgm/s

Momentum of car=0

Using law of conservation of momentum

Initial momentum of both objects =final momentum of both objects

20+0=0+?

?=20

Thus the momentum gained by the stationary car is 20kgm/s