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- The 350-lb homogeneous plate has the shape of an isosceles triangle. The plate is supported by a thrust hinge at A, a slider hinge at B, and the cable CD. Find the force in the cable and the magnitudes of the hinge reactions.The 180-lb homogeneous bar is supported by a ball-and-socket joint at A and two cables attached to B. Determine the forces in the cables.The homogeneous 240-lb bar is supported by a rough horizontal surface at A, a smooth vertical surface at B, and the cable BC. Draw the FBD of the bar and count the unknowns.
- The force P on the handle of the positioning lever produces a vertical compression of 56 lb in the coiled spring in the position shown. Determine the magnitude of the corresponding force exerted by the pin at O on the lever. Assume a = 3.4 in. b = 8.6 in. P b. AnswerThe uniform rod AB has a weight of 10KN and is supported by a ball-and-socket joint at A and by the cord GC that is attached to the midpoint G of the rod. Knowing that the rod leans against a frictionless vertical wall at B, do the following: a) Label and name all forces that act on the rod. (You may use the given drawing. Assume the weight of the rod acts at G.) (4) 1.5 m 1.5 m b) Determine the tension force in the cable required to hold the rod in equilibrium (21) 4 m G 3m 0.75 75 m- 6 m.30 cm 18 cm Hom Scm Hom Sum 2. The 30 cm handle is connected rigidly to the 5cm bar at a right angle. Determine the force developed at A if a force P = 100 N is applied perpendicular to the handle when the handle is at the position indicated.
- 2. The homogeneous bar AB weighs 25 lb. Determine the forces acting on the bar at A and B. Neglect friction. 60° AQ4. Consider the frame shown, which has a weight W hanging at B. a. When FIW = 1, determine FA (expressed as a function of W). b. Determine the ratio of F/W when the load is zero at A 2.5 in. D W -5 in-5 in.-t-5 in.The uniform 18kg Bar OA is held in the position shown by a smooth pin at O, and the cable AB which is in tension as shown. 1.5 m 60° B 1.2 m What is the angle between the force vector TAB and the position vector RoA, when the two vectors are placed tail to tail (Answer in degrees) Answer:
- The uniform 18kg Bar OA is held in the position shown by a smooth pin at O, and the cable AB which is in tension as shown. 1.5 m 60° -1.2 m The magnitude of the tension in the cable AB is (Answer in Newtons) Answer: Next paThe uniform 18kg Bar OA is held in the position shown by a smooth pin at 0, and the cable AB which is in tension as shown. 1.5 m 60° B -1.2 m What is the magnitude of the Vertical reaction force at O (Answer in Newtons) Answer: Nex8. The uniform rod in the figure shown weighs 400N and has its center of gravity at G. Determine the tension in the cable and the reactions at the smooth surfaces at A and B. 400N 2m 4m cable 2m 45°