Equation, algebra manipulation that I dont get? help

nchin · 2012-12-19T08:12:06+00:00

how does 1/2kx2 = 1/2mv2 + 1/2kx2 become x = (m/k)v2 + x2 ??

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nchin

how does

1/2kx² = 1/2mv² + 1/2kx²

become

x = (m/k)v² + x² ??

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RTW69

It doesn't. It becomes sqrt((m/k)v² + x²)

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