posted by walt on .
How much work does a 120 pound boy do in climbing to the top of the Washington Monument - a climb of 550 feet? If the climb in problem 2 takes 20 minutes, what is the average horsepower produced by the boy?
This is a physics question, not a math question, although you need to use math to soilve it.
The work done is 120 x 550 foot-pounds.
Divide that by the time required (in seconds) to get the power in ft-lb per second.
Then use the conversion factor for horsepower.
1 horsepower is defined as 550 foot-pounds per second
You may be surprised at the answer.
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