In a test of a sun-powered car, the mass of the car and driver is 100 kg. The car starts from rest on the track at A, moving toward the right. The tangential force exerted on the car (in newtons) is given as a function of time by ∑Ft, = 20 +1.2t. Determine the magnitude of the car’s velocity and the normal component of force on the ear at t = 40 s
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