1. The uniform 100-lb plank is resting on friction surfaces at A and B. The coefficients of static friction are shown in the figure. If an 200-lb man starts walking from A toward B, determine the distance x when the plank will start to ५ slide.

1. The uniform 100-lb plank is resting on friction surfaces at A and B. The coefficients of static friction are shown in the figure. If an 200-lb man starts walking from A toward B, determine the distance x when the plank will start to ५ slide.

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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Question

1. The uniform 100-lb plank is resting on friction surfaces at A and B. The coefficients of static friction are shown in
the figure. If an 200-lb man starts walking from A toward B, determine the distance x when the plank will start to
slide.
F
40
H₂=0.2
N
A
2001b
b
10 ft
B
40°
-0.5
10000
EM 2000

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