Question: A specimen of steel has a rectangular cross section 20 mm wide and 40 mm thick, an elastic modulus of 207 GPa, and a Poisson's

A specimen of steel has a rectangular cross section 20 mm wide and 40 mm thick, an elastic modulus of 207 GPa, and a Poisson's ratio of 0.30. If this specimen is pulled in tension with a force of 60,000 N, what is the change in width if deformation is totally elastic?

(A) Increase in width of 3.62 (10(6 m

(B) Decrease in width of 7.24 (10(6 m

(D) Decrease in width of 2.18 (10(6 m

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