Q11). Blocks A and B have a mass of 3 kg and 9 kg, respectively, and are connected to the weightless links shown in Fig. (Q11). Determine the largest vertical force P that can be applied at the pin C without causing any movement. The coefficient of static friction between the blocks and the contacting surfaces isus = 0.3. %3D

Q11). Blocks A and B have a mass of 3 kg and 9 kg, respectively, and are connected to the weightless links shown in Fig. (Q11). Determine the largest vertical force P that can be applied at the pin C without causing any movement. The coefficient of static friction between the blocks and the contacting surfaces isus = 0.3. %3D

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 7.17P: The two uniform sheets of plywood, each of length L and weight W, are propped as shown. If the...

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The leather rein used to fasten the horse to the hitching rail weighs 3.5 oz per foot. The coefficient of static friction between the rail and the rein is 0.6. If a 34-lb force acting on the bridle is sufficient to restrain the horse, determine the smallest safe length L for the free end of the rein.
The two uniform sheets of plywood, each of length L and weight W, are propped as shown. If the coefficient of static friction is 0.5 at all three contact surfaces, determine whether the sheets will remain at rest.
Two identical chairs, each weighing 14 lb, are stacked as shown. The center of gravity of each chair is denoted by G. The coefficient of static friction is 0.2 at B (the contact point between the chairs) and 0.35 at A, C, and D. Determine the smallest force P that would cause sliding.
The 120-kg block A is suspended from a rope that runs around the fixed pegs B and C. The coefficient of static friction between the pegs and the rope is 0.25. Determine the range of the force P for which the system is in equilibrium.
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Two blocks A and B, each having a mass of 3.5 kg , are connected by the linkage shown. Neglect the weight of the links. (Figure 1) If the coefficient of static friction at the contacting surfaces is μs = 0.5, determine the largest force P that can be applied to pin C of the linkage without causing the blocks to move.
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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.
block A and B block have a mass of 7 kg and 10 kg, respectively. Using the indicated static friction coefficients, determine the greatest vertical force P that can be applied to the wire without causing motion. Uniforms
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A chain baving a length of 20 ft and weight of 8l rests on a street for which the coefficient of static friction Ms = 0.2. If a crane is used to hoist the chain, determine force P it applies to the chain if the length of c remaining on the ground begins to slip when the horizc component of P becomes 10 lb. What length of c remains on the ground?
Determine the maximum and the minimum values of weight W which may be applied without causing the 25-kg block to slip. The coefficient of static friction between the block and the plane is μs= 0.2, and between the rope and the drum D is μ′s= 0.3.