The ladder and the person weigh 30 lb and 180 lb, respectively. The center of mass of the 12-ft ladder is at its midpoint. The coefficient of static friction between the ladder and the floor is 0.5 and the coefficient of friction between the ladder and the wall is 0.3. What is the largest value of the angle ALPHA for which the person could climb to the top of the ladder without it slipping

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
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Chapter2: Loads On Structures
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The ladder and the person weigh 30 lb and 180 lb, respectively. The center of
mass of the 12-ft ladder is at its midpoint. The coefficient of static friction
between the ladder and the floor is 0.5 and the coefficient of friction between
the ladder and the wall is 0.3. What is the largest value of the angle ALPHA for which the person could climb to the top of the ladder without it slipping?

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