Determine the magnitude of the friction force acting on the 50 kg block shown if, F, first, Fa = 250 N and, second, Fa = 50 N. The coefficient of static friction is 0.23, and the coefficient of kinetic 25 friction is 0.20.
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Q: Determine the maximum value of weight W which may be applied without causing the 80 N block to slip.…
A: Force = 80 N u = 0.2 us = 0.3 Angle = 37o
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A: Drawing the free body diagram of the system,
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Q: Q4: If the coefficient of static friction at B is u-0.4, determine the largest angle 0 and the…
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Q: 5. Determine the minimum force P to stop the box from moving if the coefficient of static friction…
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Q: Determine the maximum value of weight W which may be applied without causing the 50-lb block to…
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Q: 4) A worker is pulling down the rope as shown. If the pulleys in the system are frictionless, and…
A: From Lami's theorem, (when three forces act at a point) T1sinα=T2sinβ=Wsinγ
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Q: The 10-kg block is placed in an incline as shown. If the coefficient of static friction is 0.4,…
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Q: On figure 10, determine the friction developed between the 60-kg crate and the ground. Determine as…
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Q: The mass of the bar is 4 kg. The coefficient of static friction between the bar and the floor is 0.3…
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Q: 4) A worker is pulling down the rope as shown. If the pulleys in the system are frictionless, and…
A: Let us draw the free body diagram of the pulley Free body diagram of crate
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Q: Please, reaply as soon as posible! Static Problem The band brake shown controls the rotation of…
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Q: The coefficient of static friction for both wedge surfaces is 0.32 and that between the 36-kg…
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Q: rope
A: using expression T2/T1 = e^μθ we have calculated μ = 0.2159 free body diagram
Q: The two 200N blocks are pushed apart by the 15⁰ wedge of negligible weight. The angle of static…
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Q: The 50 N homogeneous bar AB is suspended from a rope that runs over a small peg at C. The bar is…
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Q: 5. Determine the coefficient of friction between the cord an the fixed shaft if it is observed that…
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A: Given:-θ=5°μ=0.30To find:-Horizontal force P
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Q: etermine the minimum applied force P⃗ P→ required to move the wedge AA to the right. The sping is…
A: Given:Deflection, x=200 mm or 0.2 mstiffness of spring, k=15 kN/m
Q: KN. The coefficient of friction ( us ) between the 80 KN body "A“ of fig ( 2) and the plane is (…
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- The square-threaded screw 0f the C-clamp has a mean diameter of 8 mm and a pitch of 1.6 mm. The coefficient of static friction between the threads is 0.2. If the torque C=1.50Nm is used to tighten the clamp, determine (a) the clamping force; and (b) the torque required to loosen the clamp.The 600-lb cable spool is placed on a frictionless spindle that has been driven into the ground. If the force required to start the spool rotating is F = 160 lb, determine the coefficient of friction between the ground and the spool. Neglect the diameter of the spindle compared to the diameter of the spool.The two homogeneous bars AB and BC are connected with a pin at B and placed between rough vertical walls. If the coefficient of static friction between each bar and the wall is 0.25, determine the largest angle 6 for which the assembly will remain at rest.
- The single-threaded screw of the floor jack has a pitch of 0.5 in. and a mean radius of 1.75 in. The angle of static friction is 8.5. (a) Determine the couple C that must be applied to the screw to start lifting a weight of 4000 lb. (b) What is the couple required to start lowering the weight?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.The screw of the clamp has a square thread of pitch 0.16 in. and a mean diameter of 0.6 in. The coefficient of static friction between the threads is 0.4. Determine (a) the torque C0 that must be applied to the screw in order to produce a 28-lb clamping force at A; and (b) the torque required to loosen the clamp.
- The mass of the unbalanced disk is m, and its center of gravity is located at G. If the coefficient of static friction is 0.2 between the cylinder and the inclined surface, determine whether the cylinder can be at rest in the position shown. Note that the string AB is parallel to the incline.The brake pads at C and D are pressed against the cylinder by the spring BF. The coefficient of static friction between each pad and the cylinder is 0.15. Find the smallest tension in the spring that would prevent the cylinder from rotating when the clockwise couple M=2200lbin. is applied. Neglect the weights of the members.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.
- 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 panel of weight W with its center of gravity at G is placed between vertical guides and released. Determine the largest height h for which the panel will not slide down due to binding at corners A and B. The coefficient of static friction between the panel and the guides is 0.5.The 60-lb plank rests on a frictionless roller at A, and the 20-lb triangular support BD. Both bodies are homogenous. The coefficients of static friction are 0.4 at B and 0.3 at D. Determine the largest force P that can be applied to the plank without initiating motion.