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April 25, 2015

Homework Help: calculus

Posted by Jeff on Monday, October 26, 2009 at 3:22am.

A flag pole is 40 feet high and stands on level ground. a flag is attached to a 120 foot rope passing through a pulley at the top of the flagpole. The other end of the rope is tied to a car at ground level. If car was driving directly away from flagpole at 3ft/sec, how fast is flag rising when top of flag is 20 ft off ground?

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