Engineering, 16.12.2020 01:00 elizzabel1944

A 1.25 in. by 3 in. rectangular steel bar is used as a diagonal tension member in a bridge truss. The diagonal member is 20 ft long, and its modulus of elasticity is 30,000,000 psi. If the strain in the diagonal member is measured as 0.001200, determine the amount of stretch in inches of the member. Round your answer to the nearest hundredth (0.00) of an inch.

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A 1.25 in. by 3 in. rectangular steel bar is used as a diagonal tension member in a bridge truss. Th...