How I do I make controls/elements move with inertia?

Question

Modern UI\'s are starting to give their UI elments nice inertia when moving. Tabs slide in, page transitions, even some listboxes and scroll elments have nice inertia to them (

Answer 1

Im no expert on this either, but I beleive they are done with quadratic formulas, that, when given the correct parameters, start fast or slow and dramatically increase or decrease towards the end until a certain point is reached.