Question

an object of mass 50kg is accelerated uniformly from a velocity of 4m/s to 8m/s in 8 seconds. calculate the initial and final momentum of the object . also find the magnitude of the force exerted on the object . Please answer it fast

Answer 1

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momentum = mass X velocity

initial momentum = 50 X 4 = 200 kg m / s

final momentum = 50 X 8 400 kg m / s

acceleration = (8 - 4 ) / 8 = 0.5

now find force

Force = mass x acceleration

= 50 X 0 .5
=25 N

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