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26 Nov 2019
When an automobile moves with constant speed down a highway, mostofthe power developed by the engine is used to compensate forthemechanical energy loss due to frictional forces exerted on thecarby the air and the road. If the power developed by the engineis160 hp, estimate the total frictionforce acting on the car whenit is moving at a speed of27 m/s. One horsepower equals 746W.
When an automobile moves with constant speed down a highway, mostofthe power developed by the engine is used to compensate forthemechanical energy loss due to frictional forces exerted on thecarby the air and the road. If the power developed by the engineis160 hp, estimate the total frictionforce acting on the car whenit is moving at a speed of27 m/s. One horsepower equals 746W.
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Reid WolffLv2
14 May 2019