A simple pin-connected truss is loaded and supported as shown. The truss is constructed from three aluminum members, each having a cross-sectional area of A = 1040 mm?. Assume a = 1.3 m, b = 7.4 m,...

A simple pin-connected truss is loaded and supported as shown. The truss is constructed from three aluminum members, each having a cross-sectional area ofA = 1040 mm². Assumea = 1.3 m,b = 7.4 m, andc = 3.2 m. IfP = 40 kN andQ = 80 kN, determine the normal stress in each member.

Extracted text: A simple pin-connected truss is loaded and supported as shown. The truss is constructed from three aluminum members, each having a cross-sectional area of A = 1040 mm?. Assume a = 1.3 m, b = 7.4 m, and c = 3.2 m. If P = 40 kN and Q = 80 kN, determine the normal stress in each member. P L. a Answers: OAB i MPa (С) OBC = i MPa (Т) i MPа (Т)