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| Q. |
The critical stress on a column for elastic buckling given by Euler's formula, is |
| A. | fc = ²E/(I/r)² |
| B. | fc = (I/r)²/ |
| C. | fc = (I/r)/ |
| D. | fc = ²E/(I/r) |
| Answer» A. fc = ²E/(I/r)² | |
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