The polyvinyl chloride bar is subjected to an axial force of 900 lb. If it has the original dimensions shown, determine the value of Poisson€™s ratio if the angle θ decreases by ˆ†Î¸ = 0.01° after the load is applied. E_pvc= 800(10³) psi.

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900 lb 900 lb 3 in. 6 in. 1 in.