Average power required of the car


A 1590 kg car starts from rest on a horizontal road and gains a speed of 61 km/h in 30 s

(a) What is its kinetic energy at the end of the 30 s?

(b) What is the average power required of the car during the 30 s interval?

(c) What is the instantaneous power at the end of the 30 s interval, assuming that the acceleration is constant?

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Physics: Average power required of the car
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