1. Inertia: In the absence of a force, an object at rest continues at rest and an object in motion continues in that same motion.
2. F = ma
3. Action and Reaction: The force that object A exerts on object B is the same as the force that object B exerts on object A but is in the opposite direction.
(c) 2002, Doug Davis; all rights reserved
Friction Homework Return to ToC, Ch4, Newton's Laws of Motion