Hi.. I need a good explanation for the following question. an explanation with a small mathematical calculation to prove the answer would be highly helpful.

A copper rod of cross-section 10 mm  10 mm is stretched along its axis, changing length from 1.000 m to 1.001 m. The deformation is elastic, or fully recoverable. Given that the modulus of copper is 110 GPa, the stress on the rod is approximately (choose the closest answer):

A 110 kPa
B 110 MPa
C 110 GPa
D 1/110 MPa
E 1/110 GPa

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Astronuc
Staff Emeritus
What is the relationship between stress and strain for elastic deformation?

What is the strain for a bar stretched 1.000 m to 1.001 m?

What is the relationship between stress and strain for elastic deformation?

What is the strain for a bar stretched 1.000 m to 1.001 m?
young's modulus

thanks, now i got an idea about how to do the calculation. to which units i should convert these into when calculating?

Astronuc
Staff Emeritus