The block and tackle shown are used to lower a 150-lb load. Each of the 3-in. diameter pulleys rotates on a 0.5-in.-diameter axle. Knowing that the coefficient of static friction is 0.20, determine the tension in each portion of the rope as the load is slowly raised. Use  Show your complete solution with explanation. Use flat belt frisction equation Ans. Tension at rope; AB = 77.5LB, CD = 72.5 LB, EF = 67.8LB

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A: Convert mass of block in Force  Force = mass x acceleration due to gravity F = 100 x 9.81 = 981 N =…

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A: Diameter= 0.375 incoefficient of friction  =0.27copression = 68 lbTo find:Torque MTorque M ′

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Laws of Equilibrium

A body is said to be in equilibrium if the system of forces acting on the body tends to keep the body at rest, in other words, there is no translation motion or net torque on the body. Under such conditions, the equilibrium conditions are to be applied to analyze the condition. The branch of mechanics that deals with this condition is known as 'statics'. Under equilibrium, there are no net forces on the body.