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Physics, 24.02.2020 19:02 gesic2003

The rigid beam is supported by the three suspenderbars. Bars AB and EF are made of aluminum and bar CD ismade of steel. If each bar has a cross-sectional area of 450 mm 2 ,determine the maximum value of P if the allowable stress is(s allow ) st = 200 MPa for the steel and (s allow ) al = 150 MPa forthe aluminum. E st = 200 GPa, E al = 70 GPa

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