A steel column of rectangular section (15 mmx10 mm) and length 1.5 m is simply supported at both ends. Assuming modulus of elasticity, E = 200 GPa for steel, the critical axial load (in kN) is...

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Extracted text: A steel column of rectangular section (15 mmx10 mm) and length 1.5 m is simply supported at both ends. Assuming modulus of elasticity, E = 200 GPa for steel, the critical axial load (in kN) is (correct to two decimal places)