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Newton's laws of motion
Newton's first law of motion essay
Newton's first law essay
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Basic Concepts
Issac Newton was the first to state the concepts that are necessary to understanding the physics of collisions. His three laws are used again and again in all the fields of physics:
Newton's 1st Law
In the absence of external forces, an object at rest remains at rest and an object in motion remains in motion with a constant velocity.
This law can be best observed in space, far from the gravity of a star or planet, where there is no friction or air resistance. If, in the middle of deep space, you give a rock a little push, it will continue with the direction and velocity you gave it forever. The only way to stop it is to apply a force in the opposite direction. This law is not intuitive because we are surrounded by air and gravity - if we give a rock a little push on the surface of the earth, it won't travel far.
Newton's 2nd Law
The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass.
This boils down to force equals mass times acceleration, F = ma. This little equation turns out to be immensely useful, again and again. If you add together all the forces acting on an object, they equal the mass of the object (in kg) times the acceleration of the object (in m/sec^2). Force is measured in newtons. One newton is the force required to accelerate a 1-kg mass to 1 m/sec^2.
Newton’s 3rd Law
The force exerted by object 1 onto object 2 is equal in magnitude and opposite in direction to the force exerted by object 2 onto object 1.
This law appears to make little sense and can be difficult to grasp. If you push on a brick wall, the wall is pushing back on you with an equal force. If the wall was not pushing back, then your hand wou...
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... hammer hitting a concrete wall is about 3,600,000.
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We ran into Newtons First Law, which claims that an object resists change in motion, as the marble rolled down the floor it didn’t stop until it was acted against by friction. As we moved on, Newtons Second Law came into play when we were creating our lever as we need a ball that would roll down with enough acceleration that it could knock down the objects. Newton’s second law claims, that F=MA. So, we choose a golf ball since it would have more mass than a rubber ball, but it would have less acceleration when the lever was started. This way, it would knock the upcoming objects. Newtons Third Law claims that every action yields an equal and opposite reaction. This is proven in our Rube Goldberg Machine when the small car was rolling down the tracks as the wheels pushes against the track making the track move backwards. The track provides an equal and opposite direction by pushing the wheels forward.
In 1687, Newton published Philosophiae Naturalis Principia Mathematica (also known as Principia). The Principia was the “climax of Newton's professional life” (“Sir Isaac Newton”, 370). This book contains not only information on gravity, but Newton’s Three Laws of Motion. The First Law states that an object in constant motion will remain in motion unless an outside force is applied. The Second Law states that an object accelerates when a force is applied to a mass and greater force is needed to accelerate an object with a larger mass. The Third Law states that for every action there is an opposite and equal reaction. These laws were fundamental in explaining the elliptical orbits of planets, moons, and comets. They were also used to calculate
Kinematics unlike Newton’s three laws is the study of the motion of objects. The “Kinematic Equations” all have four variables.These equations can help us understand and predict an object’s motion. The four equations use the following variables; displacement of the object, the time the object was moving, the acceleration of the object, the initial velocity of the object and the final velocity of the object. While Newton’s three laws have co-operated to help create and improve the study of
Newton’s second law states that when a net force is applied to an object, that object will experience a change in velocity, and will undergo acceleration. That acceleration is proportional to the net force applied, and inversely proportional to the mass of the object. In other words, the heavier an object is, it will require a greater force to move the object the same amount (e.g., distance) as a lighter object. ( https://www.grc.nasa.gov/www/k-12/airplane/newton2.html)The mathematical equation that expresses Newton’s second law is:
Firstly, Newton’s first law of motion is an object tends to stay in the state they are in, unless another force is acted upon it. This law is also known as the law of inertia. When an object is in motion it would like to keep moving forever, but in reality it stops. It stops for various reasons such as air, the surface on which it traveling, gravity, and it may hit an obstacle. Therefore, that is why in space, any object would keep moving on forever because there is nothing there to stop it from mov...
This law is also often called “Inertia”. Inis the tendency for an object to resist the change in motion. Like, if you are moving and nothing happens to you, then you will keep moving. Forever. If nothing is happening to, and nothing is trying to put any type of force on you then nothing will happen .Forever. (Newton’s Three) There is a limit that must be met in order for the first law to be suitable to any given motion. The limit is represented by the phrase "... unless acted upon by an unbalanced force." As the long as the forces are balanced - the first law of motion
...ys that for every action there is an equal and opposite reaction, and this is also displayed when a bat hits a ball. The bat exerts force on the ball, just as the ball exerts force on the bat. This force can sometimes even be enough to break the bat, like in the illustration below.
In this inquiry the relationship between force and mass was studied. This inquiry presents a question: when mass is increased is the force required to move it at a constant velocity increased, and how large will the increase be? It is obvious that more massive objects takes more force to move but the increase will be either linear or exponential. To hypothesize this point drawing from empirical data is necessary. When pulling an object on the ground it is discovered that to drag a four-kilogram object is not four times harder than dragging a two-kilogram object. I hypothesize that increasing the mass will increase the force needed to move the mass at a constant rate, these increases will have a liner relationship.
The acceleration of a body or object is directly proportional to the net force acting on the body or object and is inversely
that force. This, I found, is not as simple as it sounds due not only
Sir Isaac Newton is the man well known for his discoveries around the term, Motion. He came up with three basic ideas, called Newton’s three laws of motion.
According to Newton’s Second Law of Motion, the vector sum of the total forces in a system is equal to the product of the mass (m) and acceleration ( a ) of the system.
Henderson, T. n.d. The physics classroom tutorial. Lesson 2: Force and Its Representation [Online]. Illinois. Available at: http://gbhsweb.glenbrook225.org/gbs/science/phys/class/newtlaws/u2l2b.html [Accessed: 28th March 2014].
An object that is at rest or is in motion moves at a constant velocity is not subject to any outside forces.