A bar of mild steel 200 𝑚𝑚 long and 50 𝑚𝑚 ×50 𝑚𝑚 in cross section is subjected to an axial load of 200 kN . If E is 200 GPa, the elongation of the bar will be
A. 0.16 𝑚𝑚
B. 0.08 𝑚𝑚
C. 0.04 𝑚𝑚
D. 0.02 𝑚𝑚
Answer:B
A bar of mild steel 200 𝑚𝑚 long and 50 𝑚𝑚 ×50 𝑚𝑚 in cross section is subjected to an axial load of 200 kN . If E is 200 GPa, the elongation of the bar will be
A. 0.16 𝑚𝑚 B. 0.08 𝑚𝑚 C. 0.04 𝑚𝑚 D. 0.02 𝑚𝑚