A steel bar 5 m x 50 mm is loaded with 250, 000 N. If the modulus of elasticity of the material is 0.2 MN/mm² and Poisson's ratio is 0.25, the change in the volume of the bar is :

A steel bar 5 m x 50 mm is loaded with 250, 000 N. If the modulus of e

1.	A steel bar 5 m x 50 mm is loaded with 250, 000 N. If the modulus of elasticity of the material is 0.2 MN/mm² and Poisson's ratio is 0.25, the change in the volume of the bar is :
A.	1.125 cm³
B.	2.125 cm³
C.	3.125 cm³
D.	4.125 cm²
Answer» D. 4.125 cm²

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A steel bar 5 m x 50 mm is loaded with 250, 000 N. If the modulus of elasticity of the material is 0.2 MN/mm² and Poisson's ratio is 0.25, the change in the volume of the bar is :

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