Newton's Laws and Gravity

Newton's Third Law: Action-Reaction

• Bigger action reaction demonstrates Newton's Third Law.
• Forces are in equal and opposite directions.
• Larger mass results in a much bigger magnitude of force, illustrating Newton's Second Law as a segue.

Gravity as an Example of Newton's Third Law

• Every force has an equal and opposite reaction; gravity is an example of this law.
• Consider a baseball.
• The baseball feels a downwards force which reflects the weight of the ball when it's being pulled down.