Two structural members B and C are bolted to bracket A. Knowing that both members are in tension and that
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- Knowing that the radius of each pulley is 130 mm and neglecting friction, external force is 297 N. Determine the internal forces at Points J and K of the frame shown. Solution: 1. FBD for frame and pulleys together: a. There are b. Sum moment about point c. Sum all the horizonal forces to zero, solve that Ax = = d. Sum all the vertical forces to zero, yield that Ay + By 2. FBD for Member AE: a. There are supports on the frame, they are both c. Thus By b. Sum moment about point = a. There are solve that Bx = d. Sum all the horizontal forces to zero, solve that Ex N; direction is pointing to the 3. FBD for AK to determine the internal forces on K: forces/reactions on the member AE, for a 2D body, this is statically a. There are forces/reactions on the AK; b. Sum axial forces to zero, solve that nominal force FK d. Sum moment about point and note that the tension force in the cable on D is c. Sum tangential forces to zero, solve that shear force VK = 4. FBD for BJ to determine the…arrow_forwardSolve Prob. 2.4 by trigonometry.(Reference to Problem 2.4):Two structural members B and C are bolted to bracket A . Knowing that both members are in tension and that P = 6 kips and Q = 4 kips, determine graphically the magnitude and direction of the resultant force exerted on the bracket using (a) the parallelogram law, (b) the triangle rule.arrow_forwardA machine component is subjected to the forces and couples shown.The component is to be held in place by a single rivet that can resista force but not a couple. For P=0, determine the location of the rivet hole if it is to be located (a) on line FG, (b) on line GH.arrow_forward
- 2. A person's arm is used for ergonomic studies. If the distance of the AB, BC, and CD segments are 35.0 mm, 28.0 mm, and 19.0 mm, respectively, and the model is holding a small 1.5-lb load on the distal metacarpals of her hand . Determine the magnitude and direction of the moment of force with respect to a) to the shoulder joint, b) to the olecranon joint, c) to the carpal joint.arrow_forwardQ.12. The two structural members, one of which is in tension and the other in compression, exert the indicated forces on joint O. Detemine the magnitude of the resultant R of the two forces and the angle 0 which R makes with the positive x-axis. 3 kN 2 kN 3 30°arrow_forwardFor the rig and crate of Prob. 4.43 and assuming that cable is anchored at F as shown, determine (a) the required tension in cable ADCF if the maximum value of the couple at E as x varies from 1.5 to 17.5 ft is to be as small as possible, (b) the corresponding maximum value of the couple.(Reference to Problem 4.43):The rig shown consists of a 1200-lb horizontal member ABC and a vertical member DBE welded together at B. The rig is being used to raise a 3600-lb crate at a distance x = 12 ft from the vertical member DBE . If the tension in the cable is 4 kips, determine the reaction at E assuming that the cable is (a) anchored at F as shown in the figure, (b) attached to the vertical member at a point located 1 ft above E.arrow_forward
- 3.74 A piece of plywood in which several holes are being drilled successively has been secured to a workbench by means of two nails. Knowing that the drill exerts a 12-N.m couple on the piece of plywood, determine the magnitude of the resulting forces applied to the nails if they are located (a) at A and B, (b) at B and C, (c) at A and C. Pia D2 74 A 450 mm B Page 132 240 mmarrow_forwardA piece of plywood in which several holes are being drilled successively has been secured to a workbench by means of two nails. Knowing that the drill exerts a 12-N•m couple on the piece of plywood, determine the magnitude of the resulting forces applied to the nails if they are located (a) at A and B, (b) at B and C, (c) at A and C. •A C• B 240 mm 450 mmarrow_forwardA piece of plywood in which several holes are being drilled successively has been secured to a workbench by means of two nails. Knowing that the drill exerts a 12-N.m couple on the piece of plywood, determine the magnitude of the resulting forces applied to the nails if they are located (a) at A and B, (b) at B and C, (c) at A and C.arrow_forward
- The AB bar is supported by the AC string. Knowing that c = 436 mm) and that the moment of the rope in relation to B of the force exerted by the rope at point A is 754 N.m, determine the traction on the rope.arrow_forwardThe framing members AB, BC, and CD are joined at B and C and are braced using cables EF and EG. Knowing that E is at the midpoint of BC and that the tension in cable EF is 184 lb, use the dot product to a. determine the angle between EF and member BC b. the components of the force exerted by cable EF at point E in the directions parallel and perpendicular to member BC. 5.0 m 2.30 m 0.60 m 9.75 m 7.3 m 0.70 marrow_forwardIn the frame shown, member ACE and BCD are connected by a pin at C and by the link DE. Determine all the forces acting on member BCD 160 mm 400N В 60 mm D 80 mm E 150 mm 60 mm 100 mmarrow_forward
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