# Young's modulus problem

## Homework Statement

The asteriod Ceres has a mass of 1.11x10^21 kg and a diamter 772km. Ceres orbits the sun at an average distance of 414 million kilometers.
Estimate the change in length of a 2m length of thin copper wire caused by hanging a 1.5kg mass on the wire on the asteriod Ceres.
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## Homework Equations

$$\begin{array}{l} g = \frac{{GM}}{{r^2 }} \\ a = \frac{{v^2 }}{r} \\ \end{array}$$

## The Attempt at a Solution

Could somebody please give me some direction on how to approach these situation. Many thanks in return,