An 90.17 kg person is half way up a uniform ladder of length 3.939 m and mass 29.49 kg that is leaning against a wall. The angle between the ladder and the wall is 0. The coefficient of static friction between the ladder and the floor is 0.2881. Assume that the friction force between the ladder and the wall is zero. What is the maximum value of the angle between the ladder and the wall before the ladder starts slipping?

An 90.17 kg person is half way up a uniform ladder of length 3.939 m and mass 29.49 kg that is leaning against a wall. The angle between the ladder and the wall is 0. The coefficient of static friction between the ladder and the floor is 0.2881. Assume that the friction force between the ladder and the wall is zero. What is the maximum value of the angle between the ladder and the wall before the ladder starts slipping?

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 7.3P: Two identical chairs, each weighing 14 lb, are stacked as shown. The center of gravity of each chair...

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