Calculate the power output

Reference no: EM13234805

In creating his definition of horsepower, James Watt, the inventor of the steam engine, calculated the power output of a horse operating a mill to grind grain or cut wood. The horse walked in a 24-ft diameter circle, making, according to Watt, 144 trips around the circle in an hour.

(a) Using the currently accepted value of 746 watts for 1 horsepower, calculate the force (in pounds) with which Mr. Watt's horse must have been pulling. hint: How are energy and forces related?

(b) Calculate the power output, in hp, of a 72-kg human being who climbs a 5.0-m- high set of stairs in 6.0 seconds

Reference no: EM13234805

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