F4-19. 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 u, = 0.3, between B and C, 4 = 0.4, and between block C and the ground, p" = 0.35.

F4-19. 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 u, = 0.3, between B and C, 4 = 0.4, and between block C and the ground, p" = 0.35.

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 7.89RP: The woman is trying to move the crate of weight W by pulling on the rope at the angle to the...

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Question

F4-19. 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 u, = 0.3, between B and C,
4 = 0.4, and between block C and the ground, p" = 0.35.

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