May 28, 2016

Homework Help: physics

Posted by rachel on Sunday, February 26, 2012 at 9:55pm.

A uniform ladder 10.0 m long is leaning against a frictionless wall at an angle of 60.0 above the horizontal. The weight of the ladder is 21.8 lb. A 57.8-lb boy climbs 4.38 m up the ladder. What is the magnitude of the frictional force exerted on the ladder by the floor?

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