Homework Help: math

Posted by walt on Sunday, March 30, 2008 at 11:47am.

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?

math - drwls, Sunday, March 30, 2008 at 11:57am
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.
math and reading - naydine, Sunday, March 30, 2008 at 1:47pm
i need help
- math and reading - mia, Sunday, March 30, 2008 at 8:21pm
  do u know how to read? if so call this number 773 404 6525

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