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April 21, 2014

Homework Help: physical science

Posted by erin on Tuesday, February 28, 2012 at 4:07pm.

In raising a 5000-N piano with a pulley system, the movers note that, for every 2m of rope pulled down, the piano rises 0.3m. Ideally, show that the force required to lift the piano is 500-N.

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