How to rearrange the equation?

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  • #1
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Main Question or Discussion Point

I've been trying (unsuccessfully!) to rearrange the following equation so that H is the subject:

mgH = [k(H - L)^2] / 2

(Where ^2 means squared.) I also have some test data which shows that if m = 50, g = 9.8, k = 40 and L = 20, H should equal 57.5, or thereabouts
 

Answers and Replies

  • #2
hotvette
Homework Helper
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If you expand the square term, move the left side over to the right, collect terms, you get a quadratic equation in H that you can solve.
 

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