Problem Statement
(a) Determine the reactions and all bar forces of the three-hinged, trussed arch in Figure P6.27 for the following cases:
Case A: Only the 90-kN force at joint D acts.
Case B: Both the 90-kN and 60-kN forces at joints D and M act.
(b) Determine the maximum axial force in the arch in Case B.
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