6. The non-uniform rod weighing W has its center of mass at a distance three-fourths of its length from its foot at A and rests against a smooth vertical wall, as shown. If the coefficient of static friction between the horizontal floor and the foot of the rod is μ = 0.3, determine the smallest value of for which the rod will not move. L 3L A) 62.7° A B e.G. W

6. The non-uniform rod weighing W has its center of mass at a distance three-fourths of its length from its foot at A and rests against a smooth vertical wall, as shown. If the coefficient of static friction between the horizontal floor and the foot of the rod is μ = 0.3, determine the smallest value of for which the rod will not move. L 3L A) 62.7° A B e.G. W

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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In the photo, the man has a mass of 60 kg and the crate has a mass of 100 kg. The coefficient of static friction between his shoes and the ground is μs = 0.4 and between the crate and the ground is μc = 0.3. a) Determine if the man is able to move the crate using the rope-and-pulley system shown. b) Prove your answer to part A by calculating the static frictional force F between the man's shoes and the ground required to move the crate and the maximum static frictional force Fmax which can be developed. Express your answers in newtons to three significant figures separated by a comma.
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