Newton's Laws of Motion
1. Object in motion will remain in motion – inertia
2. Force = Mass X Acceleration
3. Every Action Equal and Opposite Reaction
Law of the Pendulum
When you combine mass on a string, the first law of motion, and Newton’s law’s of gravity which states an object’s mass affects it’s gravitational attraction toward another object, you get a law which states that a pendulum will not travel higher than it's starting point unless acted uppon by an outside force.