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- The end of a water hose weighing 0.5 lb/ft is pulled with a 40-lb force that is inclined at 14 to the horizontal. Determine the length s of the hose that is lifted off the ground and the corresponding horizontal distance L.The cable AB supports a uniformly distributed load of 12 lb/ft. Determine the angles A and B, and the cable tension at A.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.
- Find the forces in the three cable segments and the angles 1,2, and 3.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 chain OA is 25 ft long and weighs 5 lb/ft. Find the maximum force in the chain and the distance H.
- Find the forces Q1,Q2, and Q3 so that the two forces systems are equivalent.Determine the resultant force or resultant couple for each of the line loads shown. In each case the loading is normal to the line and has constant intensity w0.The two forces are applied to the end of the boom OA. Determine the force F so that the resultant of the two forces lies in the yz-plane.
- Find the internal force systems acting on sections 1 and 2.The intensity of the line loading acting on a quarter circle is w=w0(2/). Use intergration to determine the resultant of the loading and its line of action.The string attached to the kite weighs 0.4 oz/ft. If the tension in the string is 2.8 lb at O and 3.2 lb at B, determine the length s of the string and the height H of the kite.