Question 6 (4 marks) Determine the Euler's crippling load for a strut of T-section, the flange width being 20 cm, R over all depth 10 cm and both flange and stem 2 cm thick. The strut is (2.5 + =) m long with one end fixed and other end free. Take E = (200 + 100 × R) GPa.

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