Learning Goal: To apply the method of sections to find the forces in specific members of a truss. The method of sections

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Learning Goal To Apply The Method Of Sections To Find The Forces In Specific Members Of A Truss The Method Of Sections 1 (90.2 KiB) Viewed 26 times

Learning Goal: To apply the method of sections to find the forces in specific members of a truss. The method of sections is used to find the force in a specific member of a truss and is based on the principle that, if a body is in equilibrium, then every part of that body is also in equilibrium. When applied, the method of sections "cuts" or sections the members of a truss and exposes their internal forces. To find the unknown internal member forces, the free-body diagram of a section is drawn and the equations of equilibrium are applied: ΣF = 0 Σ Fw = 0 Σ Mo = 0 Because there are only three independent equilibrium equations, section cuts should be made such that there are not more than three members that have unknown forces. Correct answer is shown. Your answer 0.926 kN was either rounded differently or used a different number of significant figures than required for this part. Important: If you use this answer in later parts, use the full unrounded value in your calculations. Part B As shown, a truss is loaded by the forces P₁ = 2.24 kN and P₂ = 0.850 kN and has the dimension a = 3.40 m y P₁ X H - P₂ E D a a/2 a/2 Determine FCG and FGH, the magnitudes of the forces in members CG and GH, respectively, using the method of sections. Assume for your calculations that each member is in tension, and include in your response the sign of each force that you obtain by applying this assumption. Express your answers numerically in kilonewtons to three significant figures separated by a comma. ► View Available Hint(s) VE ΑΣΦΠ vec wwwww ? FCG, FGH = Submit Provide Feedback Next > P Pearson G B ** C с ** kN