## Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (3rd Edition)

$k = 250~N/m$
We can find the effective spring constant of the musculature that holds the eyeball in its socket as: $f = \frac{1}{2\pi}\sqrt{\frac{k}{m}}$ $k = f^2~(2\pi)^2~m$ $k = (29~Hz)^2~(2\pi)^2~(0.0075~kg)$ $k = 250~N/m$