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.

As elastic bar of length 'l', cross-sectional area A, Young's modulus

1.	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.
A.	WI/AE + PI/AE
B.	WI/2AE + PI/AE
C.	WI/2AE + PI/2AE
D.	WI/AE + PI/2AE
Answer» C. WI/2AE + PI/2AE

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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.

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