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▾ Part A Review Learning Goal: To analyze the forces within space truss members and the reaction forces that act on space trusses. A space truss is a stable three-dimensional structure that consists of members joined at their ends. If the external loading is applied at the joints, and the joints are ball- and-socket connections, the members of a space truss may be treated as two-force members. A space truss is subjected to a load of F = {1101 - 410k} lb (Figure 1) Three ball-and-socket joints at C, E, and G support the space truss. If F = 110 lb, F = 410 lb in the negative z direction, and d = 9.00 ft, what is the magnitude of the force in member AC? Indicate a tensile force as a positive value and a compressive force as a negative value. Express your answer numerically to three significant figures in pounds. Figure 1 of 2 B ▸ View Available Hint(s) 1 ΑΣΦ Η vec FAC= Submit ? lb ▾ Part B As shown, a space truss is the frame for a building's awning. (Figure 2) Three ball-and-socket joints at A, B, and E support the frame. If a force of F = {180i + 380j} N is applied at point D, what are the forces in each member? Indicate a tensile force as a positive value and a compressive force as a negative value. Express your answers numerically to three significant figures in newtons separated by commas. ▸ View Available Hint(s) FDA FDC, FDB, FCA, FCB, FCE = Submit Provide Feedback 1 ΑΣΦ Η vec ? N Next >

▾ Part A Review Learning Goal: To analyze the forces within space truss members and the reaction forces that act on space trusses. A space truss is a stable three-dimensional structure that consists of members joined at their ends. If the external loading is applied at the joints, and the joints are ball- and-socket connections, the members of a space truss may be treated as two-force members. A space truss is subjected to a load of F = {1101 - 410k} lb (Figure 1) Three ball-and-socket joints at C, E, and G support the space truss. If F = 110 lb, F = 410 lb in the negative z direction, and d = 9.00 ft, what is the magnitude of the force in member AC? Indicate a tensile force as a positive value and a compressive force as a negative value. Express your answer numerically to three significant figures in pounds. Figure 1 of 2 B ▸ View Available Hint(s) 1 ΑΣΦ Η vec FAC= Submit ? lb ▾ Part B As shown, a space truss is the frame for a building's awning. (Figure 2) Three ball-and-socket joints at A, B, and E support the frame. If a force of F = {180i + 380j} N is applied at point D, what are the forces in each member? Indicate a tensile force as a positive value and a compressive force as a negative value. Express your answers numerically to three significant figures in newtons separated by commas. ▸ View Available Hint(s) FDA FDC, FDB, FCA, FCB, FCE = Submit Provide Feedback 1 ΑΣΦ Η vec ? N Next >

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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Please answer part B correctly
▾ Part A Review Learning Goal: To analyze the forces within space truss members and the reaction forces that act on space trusses. A space truss is a stable three-dimensional structure that consists of members joined at their ends. If the external loading is applied at the joints, and the joints are ball- and-socket connections, the members of a space truss may be treated as two-force members. A space truss is subjected to a load of F = {1101 - 410k} lb (Figure 1) Three ball-and-socket joints at C, E, and G support the space truss. If F = 110 lb, F = 410 lb in the negative z direction, and d = 9.00 ft, what is the magnitude of the force in member AC? Indicate a tensile force as a positive value and a compressive force as a negative value. Express your answer numerically to three significant figures in pounds. Figure 1 of 2 B ▸ View Available Hint(s) 1 ΑΣΦ Η vec FAC= Submit ? lb ▾ Part B As shown, a space truss is the frame for a building's awning. (Figure 2) Three ball-and-socket joints at A, B, and E support the frame. If a force of F = {180i + 380j} N is applied at point D, what are the forces in each member? Indicate a tensile force as a positive value and a compressive force as a negative value. Express your answers numerically to three significant figures in newtons separated by commas. ▸ View Available Hint(s) FDA FDC, FDB, FCA, FCB, FCE = Submit Provide Feedback 1 ΑΣΦ Η vec ? N Next >
Transcribed Image Text:▾ Part A Review Learning Goal: To analyze the forces within space truss members and the reaction forces that act on space trusses. A space truss is a stable three-dimensional structure that consists of members joined at their ends. If the external loading is applied at the joints, and the joints are ball- and-socket connections, the members of a space truss may be treated as two-force members. A space truss is subjected to a load of F = {1101 - 410k} lb (Figure 1) Three ball-and-socket joints at C, E, and G support the space truss. If F = 110 lb, F = 410 lb in the negative z direction, and d = 9.00 ft, what is the magnitude of the force in member AC? Indicate a tensile force as a positive value and a compressive force as a negative value. Express your answer numerically to three significant figures in pounds. Figure 1 of 2 B ▸ View Available Hint(s) 1 ΑΣΦ Η vec FAC= Submit ? lb ▾ Part B As shown, a space truss is the frame for a building's awning. (Figure 2) Three ball-and-socket joints at A, B, and E support the frame. If a force of F = {180i + 380j} N is applied at point D, what are the forces in each member? Indicate a tensile force as a positive value and a compressive force as a negative value. Express your answers numerically to three significant figures in newtons separated by commas. ▸ View Available Hint(s) FDA FDC, FDB, FCA, FCB, FCE = Submit Provide Feedback 1 ΑΣΦ Η vec ? N Next >
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