C = 45 4 Р The structural components AC and BC are made of square aluminum stock with dimensions hi=90mm and ho 120mm. U

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C = 45 4 Р The structural components AC and BC are made of square aluminum stock with dimensions hi=90mm and ho 120mm. Use EA1=70GPa and treat the connections at A, B, and C as pinned. If (FS)buckling =2, the allowable magnitude of the force P applied to the system is closest to which of the following: L=12m a a h; h section a-a 45° B Fac F BC = a. Pall= 60kN; b. Pall = 75kN; c. Pall = 40kN; d. Paul = 32 kN; e. Pall = 100 kN; - =