>[!info] [Open Stax Page on this topic](https://openstax.org/books/university-physics-volume-1/pages/15-5-damped-oscillations)
Introducing damping into [[Simple Harmonic Motion]] is a less idealized version of most problems where throughout time the initial [[Energy]] is transferred to other forms, such as [[Friction]] damping.
With Friction being proportional to the velocity of an object (proportionality constant $\alpha$), the force of an object can be expressed as:
$\huge \vec F=m\vec a = -\alpha \vec v - k\vec x$
We can rewrite this as the differential equation:
$\huge \begin{align}
x'' &= -\frac{b}{m} x' - \frac{k}{m} x \\
0&= x'' + \frac{b}{m} x + \frac{k}{m} x \\
\end{align}$
Which has an analytic solution of:
$\huge
\begin{align}
x(t) &= A_{0} e^{- \frac{b}{2m}t }\cos\pa{\omega t+\phi}\\
\omega &=\sqrt{
\frac{k}{m}- \pa{\frac{b}{2m}}^2
}
\end{align}
$
>[!example]
>![[202509261357]]