http://active.tutsplus.com/tutorials/flex/throw-objects-by-creating-a-panandthrow-class/

In this tutorial we will be mocking up and finishing a pan and throw class that will allow us to add this effect to any element we want. To accomplish this, we will create a image viewer – but not your average viewer. Here we’ll have zooming, throwing, panning.. Almost sounds like a ninja app, huh?