A 25-kg ladder, 4m long rests on a rough floor and against a vertical wall. The ladder makes an angle of 35o with the horizontal as shown. It starts to slip when a man weighing 75 kg has climbed halfway up. If coefficient of friction at the wall is 0.2, determine the coefficient of friction at the floor.

A 25-kg ladder, 4m long rests on a rough floor and against a vertical wall. The ladder makes an angle of 35o with the horizontal as shown. It starts to slip when a man weighing 75 kg has climbed halfway up. If coefficient of friction at the wall is 0.2, determine the coefficient of friction at the floor.

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 7.23P: The 40-lb spool is suspended from the hanger GA and rests against a vertical wall. The center of...

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