railway RRB JE (CBT I + CBT II) Mock Test 2024 Strength of Materials Simple Stress and Strain

A steel rod, 2 m long and 10 mm × 10 mm in cross-section, is subjected to a tensile force of 30 kN. Calculate the elongation of the rod if the modulus of elasticity for the material of rod is 200 GPa.

1
1.50 mm
2
2.750 mm
3
4.5 mm
4
3 mm
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