4. The timber member has a cross-sectional area of 1750 mm and its modulus of elasticity is 12 GPa. Compute the change in the total length of the member after the loads shown are applied. 40KN 35KN...

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Extracted text: 4. The timber member has a cross-sectional area of 1750 mm and its modulus of elasticity is 12 GPa. Compute the change in the total length of the member after the loads shown are applied. 40KN 35KN 20LN D 15 m+ 3 m 3 m