Civil Engineering - UPSC Civil Service Exam Questions - Discussion

Discussion Forum : UPSC Civil Service Exam Questions - Section 26 (Q.No. 15)
15.
As elastic bar of length 'l', cross-sectional area A, Young's modulus of elasticity E and self-weight W is hanging vertically. It is subjected to a load P applied axially at the bottom end. The total elongation of the bar is given by.
WI/AE + PI/AE
WI/2AE + PI/AE
WI/2AE + PI/2AE
WI/AE + PI/2AE
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
1 comments Page 1 of 1.

Karthika.c said:   8 years ago
Elongation due to selfweight= wl^2/E.
Elongation due to axial=pl/AE.

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