Week 14 - Weight

I knew going into this that a heavy object takes more force to break inertia.  It also take more force to stop its momentum once it's moving.  Therefor, to animating something heavy should have a lot of slow in and slow out, but once it is moving it should move fast.   Besides animating a heavy bouncing ball, this is my first time actually putting it into practice.  I experimented for a while before I got it, but I think it works.