Automotive Power I A truck engine transmits 28.0 kW (37.S hp) to the driving wheels when the

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Automotive Power I A truck engine transmits 28.0 kW (37.S hp) to the driving wheels when the truck is traveling at a constant velocity of magnitude 60.0 km/h (37.3 mi/h) on a level road.
(a) What is the resisting force acting on the truck?
(b) Assume that 65% of the resisting force is due to rolling friction and the remainder is due to air resistance. If the force of rolling friction is independent of speed, and the force of air resistance is proportional to the square of the speed, what power will drive the truck at 30.0 km/h? At 120.0 km/h? Give your answers in kilowatts and in horsepower.
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Physics

ISBN: 978-1118486894

10th edition

Authors: David Young, Shane Stadler

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