(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

A wire of length L, Young's modulus Y, and cross-sectional area A is stretched

elastically by an amount ∆L. The restoring force is given by Hooke's Law as

k∆L.

b. show that the work done in stretching the wire must be: W = (YA/2L) x (∆L)^2.

3. The attempt at a solution

Not sure what work equation I use and how to put it into the equation. I tried

W = F x ∆L but my answer ended up being W = (∆L)^2 x YA x L

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# Homework Help: Young's Modulus and Hooke's Law

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