Newton's 3rd Law of Motion
By:Andrew_H.

University of Virginia
Action Force=the ground pushes upward on the satellite.
Reaction Force=the satalight applies a downward force that resists the action force in the opposite direction.
Have you ever wondered what life would be like without Sir Isaac Newton's discoveries? Well, without his findings we would never understand how things move and why we don’t just fly off the earth. Isaac Newton was a brilliant professor and scholar. Newton's life was divided into 3 parts early discoveries, childhood, productive year due to science, and the enjoyable ending of his life.
The Science
Newton's Third Law states that at the point of contact everything has and equal and opposite force. Sir Isaac also states that every action has a reaction that is equal in magnitude and opposite in direction. Newton discovered this theory in the second, most preductive period.
Action force=my hand pushes up on the cup.
Reaction force=the cup pushes down on my hand.