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A 3700-lb automobile (m = 1600 kg) starts from rest on a level road and gains a speed of 45 mi/h (= 72 km/h) in 33 s.
(a) What is the kinetic energy of the auto at the end of the 33 s?
(b) What is the average net power delivered to the car during the 33-s interval?
(c) What is the instantaneous power at the end of the 33-s interval assuming that the acceleration was constant?
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While moving down the track at 10.0 m/s, you uniformly accelerate to 32.0 m/s in 10 s. Illustrate what is the average net force that you have applied to the car during the 10 s interval?
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