The 2014-T6 aluminum hollow column is fixed at its base and free at its top. Determine the maximum eccentric force \(P\) that can be safely supported by the column. Use the interaction formula. The allowable bending stress is \(\left(\sigma_{b}\right)_{\text {allow }}\) \(=30 \mathrm{ksi}\). The thickness of the material at the cross section is \(0.5 \mathrm{in}\).

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3 in. 6 in. 6 in. P 8 ft