E. Calculate the Youngs modulus for the material of the bar shown below, The bar has an initial length of 400 mm ana is measured to extend by 0.22 mm under a tensile load of 75KN, When the force is released the bar returns to its original length. The bar has the rectangular cross-section shown below. (17p) 20 mm 75 kN 75 kN 25 mm 400 mm

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A: W = 100 kN = 60 MPa

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A: