Rabu, 07 November 2012

Newton Laws



Newton's laws of motion, the laws of science are discovered by Isaac Newton on the nature of the motion. These laws are the basis of classical mechanics. Newton's first law announced in the Philosophiae Naturalis Principia Mathematica (1687), and use it to prove many results concerning the motion of objects. In the third volume (textnya), he shows how, combining the universal law of gravity, laws of motion to explain Kepler's laws of planetary motion. 1. LAW 1 NEWTON If an object was stationary then it will have a tendency to be silent. Objects in motion tend to keep moving. This is consistent with the nature of the inert nature of the object (lazy). For objects moving on, you can see in the following example. When we push a block on the table surface is flat we will see that the beam will tend to move and then stop. However, when the surface is smoothed, the beam will tend to keep moving. The incident was first studied by Sir Issac Newton and expressed as Newton's Law I stated that "an object will remain still or keep it moving straight uniform if the resultant force acting on the object is zero." The principle is why we pushed forward when the bus suddenly braked or pushed to the back as the bus moved forward suddenly. The situation is related to the nature of inertia ourselves. Therefore, Newton's Law I called the law of inertia. 2. LAW II NEWTON How does the result in an object when the resultant force acting on it is not equal to zero? Of course there is only one possibility, the object would have to move. Motion is it? To answer it, you must remember the lessons of past of motion. Based on your answers, it can be concluded that if the resultant force acting on the object is not equal to zero but constant, objects would move uniformly accelerated. Objects moving uniformly accelerated velocity changes uniformly so as to accelerate the remains. When you push a table by himself, of course, the table is moving slowly. Unlike the case when you push it with your friends, the table easier to move. This occurs because the force exerted on the table by you alone is smaller than when you help your friends. thus, more easily moved tables because the acceleration is greater. The magnitude of the acceleration of an object is proportional to the resultant style. The greater the resultant force acting on an object, the greater the acceleration. If acceleration is symbolized by a resultant force and symbolized by ΣF, can be written If an object is moving at a certain speed you add mass inertia, acceleration of the object will be smaller. This proves that the acceleration of the object is inversely proportional to the mass of the object. In order to keep the resultant force acting on an object with greater mass, the smaller the acceleration occurs. If the inertia mass of the object symbolized by m, the acceleration and the mass relation is obtained as follows: These symptoms have been studied previously by Newton's second law resulting Newton, which states that if the resultant force acting on an object is not equal to zero, the object will move with acceleration proportional to the magnitude of the resultant style and inversely proportional to the mass inertia. Mathematically written For a moving object with a force acting ΣF = constant, a = constant. That is, the object undergo uniformly accelerated motion. 3. LAW III NEWTON If you apply a force acts on an object, the object turned out to be holding a direction opposite reaction force. Newton's third law or the Law of Action Reaction which states that if an object work force (force action) to another object, the second object will work force (reaction force) on the first object of equal magnitude and opposite direction. Newton's third law mathematically can be written as follows: Style of action and reaction is the same size, but opposite in direction and worked on two different bodies. Now you try to analyze some other objects that hold the action against other objects. Source:http://adelina-verawati.blogspot.com

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