Sharla weighing 140 lbf absorbs 0500 hp in her muscles, Ask an Expert

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Sharla, weighing 140. lbf, absorbs 0.500 hp in her muscles while pedaling a 7.00 lbf bicycle at 25.0 mph into a 5.00 mph head wind in air at 70.0°F. Her frontal cross-section is 4.00 ft by 2.00 ft, and her drag coefficient is 0.500.

a. Compute her locomotion transport number.

b. Determine her most efficient velocity on the bicycle.

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