Question

An object of mass 50kg is accelerated uniformly from a velocity of 4ms-1 to8ms-1 in 8sec. calculate the intial and final momentum of the object . Also find the magnitude if the force exerted on the object

Answer 1

initial momentum = 200 kg m/s
final momentum = 400 kg m/s
so change in momentum = 200 kg m/s
this change has occurred in 8 seconds.
so F = 200/8 = 25 N

Answer 2

Answer:

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