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thetruth1988

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## Homework Statement

A copper rod of 2 meters is joined to a steel rod with length (ls) and with cross sectional area of 1.0cm

^{2}and 2.0cm

^{2}respectively the compound rod is subjected to an equal and opposite force of 3x10

^{4}N.

Find:

a) The length of the steel rod if the elongation of the steel rod is equal.

b) What are the stress and strain in each rod?

## Homework Equations

The modulus of copper : 1.0 x 10'' N/m

^{2}

The modulus of steel : 2.0 x 10'' N/m

^{2}

## The Attempt at a Solution

I just want to be honest guys.., I have not tried any solutions because I really don't know where to start. please help me