Step 1:
In simple harmonic motion (SHM), the displacement ($x$), velocity ($v$), and acceleration ($a$) are related by the following equations:
$x(t) = A \cos(\omega t + \phi)$
$v(t) = -A\omega \sin(\omega t + \phi)$
$a(t) = -A\omega^2 \cos(\omega t + \phi)$
where
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