Q.1) An arrangement of three boxes is shown in figure below. Box A weighs 20 N and rests on an inclined plane, while box B weighs 40 N and rests on a horizontal plane. The coefficient of friction between box A and the inclined plane is 0.25, and between box B and the horizontal plane is 0.35. The pulleys are all frictionless. Determine the range of weight of box C for which no motion will occur. -0.7 m

International Edition---engineering Mechanics: Statics, 4th Edition
4th Edition
ISBN:9781305501607
Author:Andrew Pytel And Jaan Kiusalaas
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Chapter7: Dry Friction
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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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Q.1) An arrangement of three boxes is shown in figure below. Box A weighs 20 N
and rests on an inclined plane, while box B weighs 40 N and rests on a
horizontal plane. The coefficient of friction between box A and the inclined
plane is 0.25, and between box B and the horizontal plane is 0.35. The
pulleys are all frictionless. Determine the range of weight of box C for which
no motion will occur.
-0.7 m
40 N
1 m
0.5 m
0.6 m
B
20 N
0.7 m
A
4
5
Transcribed Image Text:Q.1) An arrangement of three boxes is shown in figure below. Box A weighs 20 N and rests on an inclined plane, while box B weighs 40 N and rests on a horizontal plane. The coefficient of friction between box A and the inclined plane is 0.25, and between box B and the horizontal plane is 0.35. The pulleys are all frictionless. Determine the range of weight of box C for which no motion will occur. -0.7 m 40 N 1 m 0.5 m 0.6 m B 20 N 0.7 m A 4 5
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