The coefficient of static frictions between the 96-lb body and the 18° wedge is 0.19. Determine the magnitude and direction of the force P required to begin lowering the 96-lb body if (a) rollers of negligible friction are present under the wedge, as illustrated, and (b) the rollers are removed and the coefficient of static friction = 0.19 applies at this surface as well. The force P is positive if to the left (as illustrated) and negative if to the right. 96 lb Answer: P = 18° lb

The coefficient of static frictions between the 96-lb body and the 18° wedge is 0.19. Determine the magnitude and direction of the force P required to begin lowering the 96-lb body if (a) rollers of negligible friction are present under the wedge, as illustrated, and (b) the rollers are removed and the coefficient of static friction = 0.19 applies at this surface as well. The force P is positive if to the left (as illustrated) and negative if to the right. 96 lb Answer: P = 18° lb

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 7.23P: The 40-lb spool is suspended from the hanger GA and rests against a vertical wall. The center of...

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