ENGG 202 - Engineering Statics - Winter 2023 SCHULICH Worksheet 7 - Truss Analysis selection. e) Select a joint that you would like to start with to determine the members forces. Justify your Answer: A I have Ay / Ax only need AD / AB D) Determine the unknown forces in the members connected to the joint selected in step (e), and state whether the members are in tension (T) or compression (C). Answer: X - Ax + AB + AD COS 36.87 + 3 = 0 Ay - 4 + ADSin 36.87 + g) Select the next joint and justify your selection. Determine the unknown forces in the members connected to this joint and state whether the members are in tension (T) or compression (C). Answer: h) Determine the unknown forces in all other members of the truss, and state whether the members are in tension (T) or compression (C). Answer: Final answers: FAB kN (T or C: FAD = KN (T or C: FBC= KN (T or C: FBD = kN (T or C: FCD= KN (T or C: 4 |PageENGG 202 - Engineering Statics - Winter 2023 SCHULICH Worksheet 7 - Truss Analysis Question 3: (recommended time - 35 minutes) Determine the force in each member of the truss, and state if the members are in tension (T) or compression (C). Set 0 = 30. 3 KN 1.5 m -2 m - 2 m VAKN a) Which method (method of joints or method of sections) will you use to solve this problem? Justify your answer. Answer: b) Is there any zero-force member in the given truss? If yes, identify the zero-force member(s). Answer: c) Discuss whether you need to determine the reactions at supports (A and C) for this question to proceed. Answer: d) If your answer to step (c) is "Yes", determine the support reactions at supports A and C. If your answer to step (c) is "No", you can ignore this part and proceed to step (e). Answer: 3 | Page