## Newton's Three Laws of Motion in SoccerBY:William Ramirez

Newton's First Law of Motion is defined as "An object at rest and an object in motion will stay in motion with the same speed and in the same direction unless acted upon by an unbalanced force."

In soccer, when the soccer ball is in the soccer field and it is not moving, that means that it is at rest and there is no force acting upon it. When there is a person that is ready to play soccer and wants to kick the ball and play, then the unbalanced force would be the power from the person's foot. An example of an unbalanced force is shown below.

Messi kicking the ball.

Newton's Second Law of Motion is defined as the acceleration of an object is dependent upon two variables- the net force acting upon the object and the mass of the object. In soccer, the soccer ball will go farther and faster when it is kicked harder by a player. In the example below, the player that kicks the ball wants to make sure that when he kicks the ball, it goes in the right direction and that it goes quickly. Since he wants the ball to go fast, he applies more force to the kick so that the goalkeeper won't touch it.

Messi taking the free kick.

Newton's Third Law of Motion is defined as "For every action, there is an equal and opposite reaction. In soccer, this means that when the ball is kicked to the direction of where you want it to go and you have added the amount of force that you wanted to add to the ball, it does the same back to your foot. It gives your foot back the force that you applied to it at the same time. In this example below, there are two separate feet that have kicked the ball at the same time. So if the person with the red sock kicked the ball first,the ball will apply the same force back even though if the man with the blue sock wasn't there. This would happen the same way to the man with the blue sock if he kicked it and the person with the red sock wasn't there.

Force and momentum equation will be