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A remote-controlled toy car of mass 3.0 kg starts from rest at the origin at t...

A remote-controlled toy car of mass 3.0 kg starts from rest at the origin at t = 0 and moves in the positive direction of an x axis. The net force on the car as a function of time is given in the figure below. (a) What is the time rate of change of the momentum of the car at t = 4.0 s? kg·m/s2 (b) What is the momentum of the car at t = 2.0 s? kg·m/s

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Answer #1

uzo m= 3kg a) Fra op stape F (4) = 4N b uso Flat) = mr-mu to Fat=mv Fat =) till t=2 sec Area of graph till 2 sec. 1x 4x2, 4 N

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