1.

A steel rod of 20 mm diameter and 500 mm long is subjected to an axial pull of 30 kN. If E = 2 × 105 N/mm2, the elongation of the rod will be

A. 0.239 mm
B. 0.0239 mm
C. 0.00239 mm
D. 23.9 mm
Answer» B. 0.0239 mm


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