Calculate the power required of a 1400-kg car under the following circumstances:
(a) the car climbs a 10° hill (a fairly steep hill) at a steady 80 km/h
(b) the car accelerates along a level road from 90 to 110 km/h in 6.0 s to pass another car. Assume that the average retarding force on the car is FR = 700 N throughout.
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