First let’s get to know some history about the man behind all of this. Isaac Newton, the man who is responsible for what we know as the “Laws of Motion. Sir Isaac Newton was a mathematician and physics scholar who transformed our scientific world in 1666. Sir Isaac Newton developed the theories of gravitation at only the age of 23. He then presented, in 1686, three laws of motion in the "Principia Mathematica Philosophiae Naturalis." It is believed that he first started studying the effects of gravity after watching an apple fall. Why did it fall, and what determined the speed at which it fell? It is believed that this incident, as well as his curiosity for seeing stars and planets above without them falling to the ground, led him to develop the laws of motion. …show more content…
So for example, say a tennis ball is positioned on a flat, leveled surface, it will stay in the same spot it was placed on. The ball will not move or roll in any other direction until acted upon by an unbalanced outside force. So if a tennis player were to throw the ball unswervingly up into the air, the ball would bounce up when making contact with the ground and end up landing in the same spot every single time. Therefore, when a tennis player tosses the ball directly up into the air, the ball will fall directly down, but if the player were to throw the ball up into the air and thrust it on its way down with a great amount of force, the ball would thus alter in direction, moving in the same direction as the racquet, due to the new force being applied to it. It will continue to go in that same direction, until acted upon by an equal or greater outside force from the other player's racquet in order to send the ball back into the direction it came