College Physics
1st Edition
ISBN:9781938168000
Author:Paul Peter Urone, Roger Hinrichs
Publisher:Paul Peter Urone, Roger Hinrichs
Chapter7: Work, Energy, And Energy Resources
Section: Chapter Questions
Problem 38PE: (a) How long will it take an 850-kg car with a useful power output of 40.0 hp (1hp=746W) to reach a...
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A 1400 kg car delivers a constant 42 hp to the drive wheels. We assume the car is traveling on a level road and that all frictional forces may be ignored.
A) What is the acceleration of this car when its speed is 10 m/s?
B) If the speed of the car is doubled, does its acceleration increase, decrease, or stay the same? Explain
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