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Displacement of simple harmonic motion Watch

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    When using equations x=Acoswt and x=Asinwt, how would you determine if the displacement is positive or negative?
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    Just quoting in Fox Corner so she can move the thread if needed :wizard:
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    You'd have to decide which way was positive unless the question made it clear... similar to using SUVAT

    have you got an example?
 
 
 
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