1.

If an axial force N is applied gradually to a bar which is linear elastic and has a constant cross sectional area A and length L, what will be ?

A. <sup>1</sup> <sub>4</sub> NL/AE
B. <sup>1</sup> <sub>3</sub> NL/AE
C. <sup>1</sup> <sub>2</sub> NL/AE
D. NL/AE
Answer» E.


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