Principles of animating a Bouncing Ball - 2

Slow-In and Slow-Out

The next principle of animating a bouncing ball is Slow-In and Slow-Out. This is the action the ball takes on the Path of Action. In the case of the ball, the beginning of the arc is called Slow-In and after the ball does its bounce it goes into Slow-Out, this is because it loses some of its momentum so slows as it approaches the top.

A great tip I was recommended to do when planning your Slow-In and Slow-Out is to put marks along the arc so you can easily work out the balls position and timing. For Slow-In you want the marks to be quite close together and gradually have more space in-between and then the opposite of this for your Slow-Out. Here you can see I've added some marks to my drawing to explain this.

REMEMBER - The closer together the marks are the slower it will move!