Question: A pickup truck has a clean drag-area CDA of 35 ft2. Estimate the horsepower required to drive the truck at 55 mi/h (a) clean and

A pickup truck has a clean drag-area CDA of 35 ft2. Estimate the horsepower required to drive the truck at 55 mi/h (a) clean and (b) with the 3- by 6-ft sign in Fig. P7.88 installed if the rolling resistance is 150 lbf at sea level.

Eat at Joe's 3 ft

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