EP ENGR.MECH.-MOD.MASTERING ACCESS
15th Edition
ISBN: 9780134867267
Author: HIBBELER
Publisher: PEARSON CO
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Textbook Question
Chapter 8, Problem 7FP
F8–7. Blocks A, B, and C have weights of 50 N, 25 N, and 15 N, respectively. Determine the smallest horizontal force P that will cause impending motion. The coefficient of static friction between A and B is, μs = 0.3, between B and C is, μs = 0.4, and between block C and the ground, μs = 0.35.
Prob. F8–7
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Blocks A, B, and C have weights of 50 N, 25 N, and 15 N, respectively. Determine the smallest horizontal force P that will cause impending motion. The coefficient of static friction between A and B is μs = 0.3, between B and C,μ's = 0.4, and between block C and the ground, μ"s = 0.35.
If each box weighs 150 lb, determine the least horizontal force P that the man must exert on the top box in order to cause motion. The coefficient of static friction between the boxes is μs = 0.54, and the coefficient of static friction between the box and the floor is μ's = 0.24.
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8 = 60 mm
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HAB =
= 0.4
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B
Chapter 8 Solutions
EP ENGR.MECH.-MOD.MASTERING ACCESS
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