Question: It is difficult to define the frontal area of a motorcycle due to its complex shape. One then measures the drag-area, that is, CDA, in

It is difficult to define the “frontal area” of a motorcycle due to its complex shape. One then measures the drag-area, that is, CDA, in area units. Hoerner [12] reports the drag-area of a typical motorcycle, including the (upright) driver, as about 5.5 ft2. Rolling friction is typically about 0.7 lbf per mi/h of speed. If that is the case, estimate the maximum sea-level speed (in mi/h) of the new Harley-Davidson V-RodΟ cycle, whose liquid-cooled engine produces 115 hp?

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