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A pin-connected truss is loaded and supported as shown. Each aluminum member has a cross-sectional area of A = 2.6 in. 2 . Assume a

A pin-connected truss is loaded and supported as shown. Each aluminum member has a cross-sectional area of A = 2.6 in. 2 . Assume a = 4.50 ft and b = 5.40 ft. If the normal stress in each member must not exceed 30 ksi, determine the maximum load P max that may be supported by the structure.

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