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    acceleration = ẍ = -w2x

    In SHM, the acceleration of a body is always in the opposite direction to the displacement (i.e. the acceleration is towards the equilibrium position). Since = acceleration, surely that would mean that also acts towards the equilibrium position? But my book states that:

    is always in the direction of increasing x

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    Your book is wrong or you have misunderstood what they are trying to say.
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    (Original post by nerak99)
    Your book is wrong or you have misunderstood what they are trying to say.
    I don't think I have misunderstood, the book must be wrong.. It has stated this numerous times though
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    (Original post by GPODT)
    I don't think I have misunderstood, the book must be wrong.. It has stated this numerous times though
    This may help, in particular post #6.
 
 
 
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