4.35. Set Up:Call the blocks Aand B, with and Since the worker pulls to the right, thefriction force on each block is to the left. Let be the force the worker applies and let Tbe the tension in the rope.Solve:The free-body diagrams are shown in Figure 4.35. The rope pulls to the right on block Aand to the left onblock B.Figure 4.35Reflect:The force acts only on block B.4.36. Set Up:Call the blocks Aand B, with and Let be the force the worker applies toblock A. Since the worker pushes to the right, the friction force on each block is to the left. Let be the normalforce that Aexerts on Band let be the normal force that Bexerts on A.Solve:The free-body diagrams are shown in Figure 4.36.Figure 4.364.37. Set Up:Use coordinates with upward. The objects are at rest so they have Solve: (a)The free-body diagram for the chandelier is shown in Figure 4.37a. the tension in the bottom link ofthe chain, equals the magnitude of the upward force that the bottom of the chain exerts on the chandelier. gives so Figure 4.37(b)Apply to the chain. The free-body diagram for the chain is shown in Figure 4.37b. The chandelier
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This note was uploaded on 03/06/2009 for the course PHYS 114 taught by Professor Shoberg during the Spring '07 term at Pittsburg State Uiversity.