A 40lb ladder 12ft long leans against the wall making an angle of 30-degree with the wall. When a 190lbf man reached a point 8ft from the lower end, the ladder is just about to slip. Calculate the coefficient of friction between the ladder and the floor. Note: the coefficient of friction between the ladder and the wall is 0.20

A 40lb ladder 12ft long leans against the wall making an angle of 30-degree with the wall. When a 190lbf man reached a point 8ft from the lower end, the ladder is just about to slip. Calculate the coefficient of friction between the ladder and the floor. Note: the coefficient of friction between the ladder and the wall is 0.20

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter7: Dry Friction

Section: Chapter Questions

Problem 7.63P: The leather rein used to fasten the horse to the hitching rail weighs 3.5 oz per foot. The...

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