Question: 3. A beam with cross-section shown in Fig. P-549 is loaded in such a way that the maximum moments are +1.0P lb-ft and -1.5P

3. A beam with cross-section shown in Fig. P-549 is loaded in

such a way that the maximum moments are +1.0P lb-ft and -1.5P

3. A beam with cross-section shown in Fig. P-549 is loaded in such a way that the maximum moments are +1.0P lb-ft and -1.5P lb-ft, where P is the applied load in pounds. Determine the maximum safe value of P if the working stresses are 4 ksi in tension and 10 ksi in compression.

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