Ch. 2 Section 1 - Newton's First Law: A Running Start

Inertia: Galileo (and our class) proved that the ball will roll forever until it reaches its original height.

[Movie] Credit: Julia E.

Ch. 1 Section 5 - Negative acceleration

http://gallery.me.com/mateoaw/100054/Ch.%201%20Section%205%20-%20Negative%20acceleration