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- The center of gravity of the 850-N man is at G. If the man pulls on the rope with a 388-N force, determine the horizontal distance b between the man's feet and G.The tensions in the cable at points O and B are TO=1200N and TB=1800N. Determine the weight W of the cable.The cable AB supports a uniformly distributed load of 12 lb/ft. Determine the angles A and B, and the cable tension at A.
- Two 12-kg spheres are placed 400 mm apart. Express the gravitational attraction acting between the spheres as a percentage of their weights on earth.The cable AOB weighs 5.2 N/m. When the horizontal 30-N force is applied to the roller support at B, the sag in the cable is 5 m. Find the span L of the cable.The homogeneous plate of weight W is suspended from two cables. Determine the force P that is necessary to keep the plate in the position shown.
- Two concrete blocks weighing 320 lb each form part of the retaining wall of a swimming pool. Will the blocks be in equilibrium when the pool is filled and the water exerts the line loading shown?The trapdoor is held in the position shown by two cables. The tensions in the cables are T1=30lb and T2=90lb. Determine the magnitude of the single force that would have the same effect on the door as the cable tensions.A uniform 80-ft pipe that weighs 960 lb is supported entirely by a cable AB of negligible weight. Determine the length of the cable and the maximum force in the cable. (Hint: First locate the point O where the cable is tangent to the pipe.)