I remember solving this problem* from high school days. It results in a simple harmonic motion. * Provided the object falling down is a spherical cow that is i

I remember solving this problem* from high school days. It results in a simple harmonic motion. * Provided the object falling down is a spherical cow that is impervious to pressure changes and what not :) https://en.wikipedia.org/wiki/Spherical_cow https://en.wikipedia.org/wiki/Spherical_cow