I have been looking all over for an equation to find the work done on a steel string that is stretched L meters.(adsbygoogle = window.adsbygoogle || []).push({});

"Find the work needed to stretch the string."

I know it has variable forces so I was thinking I could use elastic potential

[tex]U=\frac{kx^{2}}_{2}[/tex]

but now I have the problem finding out what K is.

ANY help is appreciated thanks.

Nick

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# Homework Help: Work done by stretching a STring

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