Question: 7. A 1.25 in. by 3 in. rectangular steel bar is used as a diagonal tension member in a bridge truss. The diagonal member

7. A 1.25 in. by 3 in. rectangular steel bar is used

7. 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 in./in., determine: b. The axial stress (precision of 1,000) c. The tension force in the bar d. The elongation of the member (precision of 10,000) (precision of 0.00)

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