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- The cable is loaded by an 80-lb vertical force at C and a horizonal force P at B. Determine P.The 30-lb block is held in place on the smooth inclined plane by the force P. (a) Knowing that =20, determine P. (b) Given that P=40lb, find the angle .The pulley-cable system supports the 150-lb weight. The weights of the pulleys and the horizontal bar ABC are negligible. Determine the cable tensions at A and C and the distance x.
- Determine the ratio P/Q of the forces that are required to maintain equilibrium of the mechanism for an arbitrary angle . Neglect the weight of the mechanism.The uniform, 30-lb ladder is raised slowly by pulling on the rope attached at A. Determine the largest angle that the ladder can attain if the maximum allowable tension in rope BC is 120 lb.The horizontal boom carries the weight W=108lb at A. The boom is supported by the cables AB and AC. The tensions in the cables are TAB=120lb and TAC=160lb. Determine the single force R that is equivalent to three forces acting on the boom at A.
- The cable of mass 1.8 kg/m is attached to a rigid support at A and passes over a smooth pulley at B. If the mass M = 40 kg is attached to the free end of the cable, find the two values of H for which the cable will be in equilibrium. (Note: The smaller value of H represents stable equilibrium.)Assuming that P=48000lb and that it may be applied at any joint on the line FJ, determine the location of P that would cause (a) maximum tension in member HI; (b) maximum compression in member CI; and (c) maximum tension in member CI. Also determine the magnitude of the indicated force in each case.The 14-kN weight is suspended from a small pulley that is free to roll on the cable. The length of the cable ABC is 20 m. Determine the horizontal force P that would hold the pulley in equilibrium in the position x=5m.
- If block B weighs 300 lb and block C weighs 200 lb, determine the following: 3.1 The required angle for equilibrium is Blank 1°. 3.2 The required weight of block D for equilibrium is Blank 2 lb. 3.3 If block D weighs 253 lb and the measure of angle = 39.2°, determine the required weight of block B for equilibrium.If Cable CB is subjected to a tension twice that of cable CA, determine the angle θ for equilibrium of the (30+51) cylinder. Also what is the tension of cable CA and CB.Determine the Angles ʆ and θ so that the forces shown will be in equilibrium. Use equilibrium formula in the computation.