Fore Analysis Project
By: Sydney Sauer
Intro
Newtons Three Main Laws
1. Newtons first law states that an object at rest will remain at rest, and an object in motion will remain in motion unless acted upon by an unbalanced/external force. This law can also be described as the Law of Inertia or be known as equilibrium. These both describe an objects desire to remain at whatever state it is in (which can also apply when an object is at rest or at a constant acceleration). Only an unbalanced force can cause a change in acceleration.
How will this law apply to my example of kicking a soccer ball?
This law can be applied to my example because it states that an object at rest will remain at rest. This means that when the soccer ball is in motion it will remain in motion, which is true, it continues to move.This can then be applied to my example with the part of the law that states that this law of equilibrium will not change unless acted upon by an external force. When I exert force onto the ball from my foot to kick it, it then moves across the ground changing it from its resting state into acceleration. (It will no longer be resting). Also, when the ball stops when I catch it with my foot, it means that I am exerting another force onto it causing the ball to change from its constant state of motion that it was in so it is then at rest. Analyzing this law will allow me to find the normal, gravitational and frictional force for the ball as it is moving at a constant rate.
2. Newtons second law states that unbalanced forces occur when forces acting on an object don't cancel each other; resulting in acceleration. {Fu does not equal 0}
How will this law apply to my example of kicking a soccer ball?
This law can apply to kicking a soccer ball because as you pass the ball you are exerting a force onto the ball that is not being equally applied to the other side of the ball, therefore causing it to move. If there was an equal force acting on the other side of the ball, it would remain at rest and would not be moved. Analyzing this law will allows me to find the unbalanced, gravitational, normal and applied force as my foot first comes into contact with the ball causing it to begin to accelerate.
3. Newtons third law states that for every action force there is an equal and opposite reaction force.
How does this law apply to my example of kicking a soccer ball?
In general terms this law means that for any force you put on an object that same amount of force will come back onto you. (The pressure you are feeling on any object as you apply a force to it is the force that is returning back to you). This applies to the basketball because when you put force onto the ball as you are about to pass it, the feeling that you are receiving back on your hands is the force being applied back to you. (These forces are equal). This will apply to the ball because as the ball is at rest it will have the same gravitational pull as it does a normal force. (Not moving because those two forces are even and no other forces are acting upon it).
Quantitative data will be created by analyzing the video as these three different laws are applying to get values for each type of force that is present allowing me to create three different force diagrams with accurate values. (One force diagram for each different law).