Homework#8 Problem 8.65 The coefficient of static friction between A and C and between B and...
8-65. Determine the smallest force P needed to lift the 3000-lb load. The coefficient of static friction between A and Cand between Band D is 0.3,and between A and B 0.4. Neglect the weight of each wedge. 3000 lb 15
Review The wedge is used to level the member. The coefficient of static friction between the wedge and the two surfaces of contact is Hs = 0.18. Suppose that w = 700 N/m and a = 7º(Figure 1) Part A Determine the horizontal force P that must be applied to begin to push the wedge forward. Neglect the weight of the wedge. Express your answer to three significant figures and include the appropriate units. MA Figure 1 of 1 P=...
8-66. Determine the reversed horizontal force-P needed to pull out wedge A. The coefficient of static friction between A and C and between B and D is 0.2, and between A and B,0.1. Neglect the weight of each wedge. 3000 lb 15
The coefficient of static friction between A and C and between B and D is mu_s = 0.19, and between A and B is mu_s' = 0.15. Neglect the weight of each wedge. Determine the horizontal force P needed to pull out wedge A.
The 150-lb man lies against the cushion for which the coefficient of static friction is , = 0.5. He rotates about the z axis with a constant speed v = 29 ft/s. (Figure 1) Part A Determine the smallest angle of the cushion at which he will begin to slip off. Express your answer using three significant figures. 90 ADV u vec O ? Submit Request Answer Figure (< 1 of 1 > Provide Feedback
The coefficient of static friction at C is fs = 0.3. Neglect the thickness of the ring. (Figure 1) Part A Determine the largest magnitude of the force F that can be applied to the 6-kg ring, without causing it to slip. Express your answer to three significant figures and include the appropriate units. 0 ÅR O 2 ? Ft Value Units Figure < 1 of 1 > Submit Request Answer Provide Feedback G 30 0.4 m
The coefficient of static friction between A and C and between B and D is μs = 0.25, and between A and B is μs = 0.41. Neglect the weight of each wedge. (Figure 1)
Review The wedge is used to level the member. The coefficient of static friction between the wedge and the two surfaces of contact is p, = 0.15. Suppose that w = 400 N/m and a =5°(Figure 1) Part A Figure Determine the horizontal force P that must be applied to begin to push the wedge forward. Neglect the weight of the wedge. Express your answer to three significant figures and include the appropriate units. 1 of 1 Ps Value Units...
The uniform 14-kg ladder rests on the rough floor for which the coefficient of static friction is = 0.5 and against the smooth wall at B.(Figure 1) Part A Determine the horizontal force P the man must exert on the ladder in order to cause it to move Express your answer with the appropriate units. PÅ RO? P= Value N Submit Previous Answers Request Answer X Incorrect; Try Again: 5 attempts remaining < Return to Assignment Provide Feedback Figure
Topic 5-3 Problem 8.86 6 of 6 The 85.0-lb boy at A is suspended from the cable that passes over the quarter circular cliff rock. Determine if it is possible for the 175-lb woman to hoist him up. The coefficient of static friction between the cable and the rock is u 0.2, and between the shoes of the woman and the grounds 0.8. (Figure 1) Previous Answers Correct Part D What smallest force must she exert on the horizontal cable?...