A 25-kg ladder, 4 m long, rests on a rough floor and against a vertical wall. The ladder makes an angle of 35 with the horizontal as shown. It starts to slip when a man weighing 75 kg has climbed halfway up. If f = 0.20 at the wall, find the coefficient of friction (µf) at the floor.
A 25-kg ladder, 4 m long, rests on a rough floor and against a vertical wall. The ladder makes an angle of 35 with the horizontal as shown. It starts to slip when a man weighing 75 kg has climbed halfway up. If f = 0.20 at the wall, find the coefficient of friction (µf) 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 7.59P: How many turns of rope around the capstan are needed for the 40-lb force to resist the 8000-lb pull...
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A 25-kg ladder, 4 m long, rests on a rough floor and against a vertical wall. The ladder makes an angle of 35 with the horizontal as shown. It starts to slip when a man weighing 75 kg has climbed halfway up. If f = 0.20 at the wall, find the coefficient of friction (µf) at the floor.
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