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04-06-2008, 02:15 PM
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| a physics power problem?
When an automobile moves with constant velocity, the power developed is used to overcome the frictional forces exerted by air and road. If the power developed in an engine is 55.0 hp, what total frictional force acts on the car at 23.9 m/s? (Hint: Note that one horsepower, 1 hp, is equal to 746 W.)
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