6-49 A beam has the cross section shown. If it is made of steel that has an allowable stress of allow 24 ksi, deter- mine the largest internal moment the beam can resist if the moment is applied (a) about the z axis, (b) about the y axis. 3 in. 0.25 in. 0.25 in. 3 in. 3 in. 3 in. 0.25 in. Prob. 6-49

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