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- Feb 18, 2013
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So I missed two questions in TPRH SW when dealing with displacement of springs. When do you choose between F = -kx and PE = 1/2kx^2?
One question explanation about a vertical spring at rest chose F = -kx while another question explanation on work done by a spring chose the PE equation. I used the opposite equation for both questions.
One question explanation about a vertical spring at rest chose F = -kx while another question explanation on work done by a spring chose the PE equation. I used the opposite equation for both questions.