Homework Help: AP Physics - Work, Energy, Power

Posted by Henry on Friday, October 16, 2009 at 12:50am.

A driver notices that her 1150-kg car slows down from 85 km/h to 65 km/h in about 6 seconds on the level when it is in neutral. Approximately what power (watts and hp) is needed to keep the car traveling at a constant 75 km/h?

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