# Numerical - Elongation of rod, given force, dimensions, Young's modulus

**Q. Force of 100 kN is applied on 900 mm long rod of 20 mm diameter and is simultaneously heated at 70**^{o} C. What is the total elongation of the rod? (Assume coefficient of thermal expansion = 10 x 10^{–6} ^{o}C, Young's modulus = 150 Gpa)*- Published on 21 Sep 15***a.** 2.54 mm

**b.** 2.00 mm

**c.** 1.27 mm

**d.** 0.63 mm

**ANSWER: 2.54 mm **