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December 20, 2014

Homework Help: physics

Posted by katie on Wednesday, December 8, 2010 at 11:07am.

ladder of mass m and length l leans against a frictionless wall at an angle of 60 degrees. The coefficient of static friction between the ladder and ground is 0.45. A man whose mass is 4 times the ladder climbs up. How far up the ladder can he go before he slips?

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