Question

N obejct of mass 100kg is accelerated uniformly from a velocity of 5m/s to 1 m/s in 6s calculate initial and final momentum of the object and the magnitude of force

Answer 1

initial momentum=m×u=100×5=500
final momentum=m×v=100×1=100
force=change in momentum÷time
force=(100-500)÷6
force=-400÷6=66.66N