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Learning Goal: To learn to apply the method of joints to a truss in a systematic way and thereby find the loading in each member of the truss. In analyzing or designing trusses, it is necessary to determine the force in each member of the truss. One way to do this is the method of joints. The method of joints is based on the fact that if the entire truss is in equilibrium, each joint in the truss must also be in equilibrium (.e., the free-body diagram of each joint must be balanced). Consider the truss shown in the diagram. The applied forces are R 610 lb and P-410 lb and the distance is d = 8.50 ft. (Elgure 1)

Learning Goal: To learn to apply the method of joints to a truss in a systematic way and thereby find the loading in each member of the truss. In analyzing or designing trusses, it is necessary to determine the force in each member of the truss. One way to do this is the method of joints. The method of joints is based on the fact that if the entire truss is in equilibrium, each joint in the truss must also be in equilibrium (.e., the free-body diagram of each joint must be balanced). Consider the truss shown in the diagram. The applied forces are R 610 lb and P-410 lb and the distance is d = 8.50 ft. (Elgure 1)

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Learning Goal: To learn to apply the method of joints to a truss in a systematic way and thereby find the loading in each member of the truss. In analyzing or designing trusses, it is necessary to determine the force in each member of the truss. One way to do this is the method of joints. The method of joints is based on the fact that if the entire truss is in equilibrium, each joint in the truss must also be in equilibrium (.e., the free-body diagram of each joint must be balanced). Consider the truss shown in the diagram. The applied forces are P=610 lb and P = 410 lb and the distance is d = 8.50 ft. (Elgure 1) Figure 30° FDB = FDR- d D P₁ FBA FOR= 30° Part D- The Forces in the Members at Joint D d Part F - The Forces in the Members at Joint B Having found Fcp in the analysis of joint C, there are now only two unknown forces acting on joint D. Determine the two unknown forces on joint D. Express the magnitudes of the forces to three significant figures. Separate your answers with a comma. 15] ΑΣΦ. 11 Ivec VAXtvec Part B - The Forces in the Members at Joint C ? ? What are the forces in the two members CB and CD? Express the magnitudes of the forces to three significant figures. Separate your answers with a comma. 15. ΑΣΦ | at Ivec FCB, FCD = Having found Fcp in the analysis of joint C and Fps in the analysis of joint D. there are now only two unknown forces acting on joint B. Determine the two unknown forces on joint B Express the magnitudes of the forces to three significant figures. Separate your answers with a comma. lb. lb ? lb, lb lb, lb
Transcribed Image Text:Learning Goal: To learn to apply the method of joints to a truss in a systematic way and thereby find the loading in each member of the truss. In analyzing or designing trusses, it is necessary to determine the force in each member of the truss. One way to do this is the method of joints. The method of joints is based on the fact that if the entire truss is in equilibrium, each joint in the truss must also be in equilibrium (.e., the free-body diagram of each joint must be balanced). Consider the truss shown in the diagram. The applied forces are P=610 lb and P = 410 lb and the distance is d = 8.50 ft. (Elgure 1) Figure 30° FDB = FDR- d D P₁ FBA FOR= 30° Part D- The Forces in the Members at Joint D d Part F - The Forces in the Members at Joint B Having found Fcp in the analysis of joint C, there are now only two unknown forces acting on joint D. Determine the two unknown forces on joint D. Express the magnitudes of the forces to three significant figures. Separate your answers with a comma. 15] ΑΣΦ. 11 Ivec VAXtvec Part B - The Forces in the Members at Joint C ? ? What are the forces in the two members CB and CD? Express the magnitudes of the forces to three significant figures. Separate your answers with a comma. 15. ΑΣΦ | at Ivec FCB, FCD = Having found Fcp in the analysis of joint C and Fps in the analysis of joint D. there are now only two unknown forces acting on joint B. Determine the two unknown forces on joint B Express the magnitudes of the forces to three significant figures. Separate your answers with a comma. lb. lb ? lb, lb lb, lb
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