Laws of motion
In 1687 Sir Isaac Newton established a relationship among mass, motion and force in his famous book named "Naturalasis Philosophia Principia" which is very important in theoretical physics. This law is called Newton's law of motion. These laws are Newton's First Law of motion, Newton's second law of motion and Newton's third law of motion. Theses three laws of motion can explain more complex topics of theoretical physics. Newton's first law of motion explains that without any external force a stationary substance will remain in rest and a moving substance will remain moving. Newton's first law of motion is also called the theory of inertia. In theoretical physics inertia is defined as the restriction against any change. There have a lot of variables in theoretical physics which values and measures are found from the Newtons law of motion. In absence of any external force the acceleration of moving substance will be zero. According to the Newtons second law of motion the rate of the momentum changing is proportional to the force. The direction of the force is as same as the direction of the momentum. Momentum is the multiplication of the mass and velocity.
If external force does not implement then any stationary object will remain stable and any moving object will remain moving. Just think you a train is moving. Theen the engine o the train switched off then it tempts to stable. In this case the attempt of stabilising the movement of the object is gravitation and friction. If gravitation and friction do shall not act on the object, the object will remain moving.
According to second law of motion, in any time the rate of change of the momentum of any object is proportional to the exerted force on the object. The second law of motion is specially focuses on the momentum of the object. Momentum is the measure of any object that is equal to the mass multiplied by the velocity of the object.
Let us consider a good example of second law of motion. If velocity of two objects ofotion is same and it hit on another object, how force the second object will feel is dependent on the mass of the objects. In this case more massive object will create more force. And less massive object will create less force.
From the second law of motion another very important equation can derive. That is force is equal to the mass multiplied by the acceleration.
F = ma
Where F is denoted for force, m is denoted for mass of the objects and a is demoted for the acceleration of the objects.
Third law of motion says that every action have its equal and opposite reaction. Just think you putted a fruit on a table. The table is making force on the fruit. As same as the fruit is also making force on the table. Two forces are acting upon each other belongs to opposite direction.
Another, very common example may given. You jumped to land from boat. Very wonder you Will feel that you became forwarder and the boat became backward. This phenomenon happened for the cause that you made a force on the boat and as same the boat also made force on you. The two of the exerted force are equal and opposite direction.
Let any substance putting on a surface. What is happening between these two objects. Both two of the objects are exerting force on each another in opposite direction
Motion law is not limitation free. With the emergence of modern physics Newton's motion law facing some of the limitations. Though, it never be ignore that once the maximum theory of the physics was established on the basis of motion law of Newton. Basically Newton's motion law is the basis of classical mechanics. But in the modern era of physics classical mechanics is out dated in terms of explaining microscopic particles motion. Hence, motion law is only applicable in explaining the behaviour of massive objects motion. It can never explain the speed of light and electron like particles.
In the third law of motion there explained that if external force does not exerts then stationary body will remain stable and moving body will remain moving. But in modern physics considering the cosmological view, the conception of stable bodies are ignored by few scientists. Because, in our universe everything is considered as the moving objects.
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First law
If external force does not implement then any stationary object will remain stable and any moving object will remain moving. Just think you a train is moving. Theen the engine o the train switched off then it tempts to stable. In this case the attempt of stabilising the movement of the object is gravitation and friction. If gravitation and friction do shall not act on the object, the object will remain moving.
Second law of motion
According to second law of motion, in any time the rate of change of the momentum of any object is proportional to the exerted force on the object. The second law of motion is specially focuses on the momentum of the object. Momentum is the measure of any object that is equal to the mass multiplied by the velocity of the object.
Let us consider a good example of second law of motion. If velocity of two objects ofotion is same and it hit on another object, how force the second object will feel is dependent on the mass of the objects. In this case more massive object will create more force. And less massive object will create less force.
From the second law of motion another very important equation can derive. That is force is equal to the mass multiplied by the acceleration.
F = ma
Where F is denoted for force, m is denoted for mass of the objects and a is demoted for the acceleration of the objects.
Third law of motion
Third law of motion says that every action have its equal and opposite reaction. Just think you putted a fruit on a table. The table is making force on the fruit. As same as the fruit is also making force on the table. Two forces are acting upon each other belongs to opposite direction.
Another, very common example may given. You jumped to land from boat. Very wonder you Will feel that you became forwarder and the boat became backward. This phenomenon happened for the cause that you made a force on the boat and as same the boat also made force on you. The two of the exerted force are equal and opposite direction.
Let any substance putting on a surface. What is happening between these two objects. Both two of the objects are exerting force on each another in opposite direction
Limitation of motion law
Motion law is not limitation free. With the emergence of modern physics Newton's motion law facing some of the limitations. Though, it never be ignore that once the maximum theory of the physics was established on the basis of motion law of Newton. Basically Newton's motion law is the basis of classical mechanics. But in the modern era of physics classical mechanics is out dated in terms of explaining microscopic particles motion. Hence, motion law is only applicable in explaining the behaviour of massive objects motion. It can never explain the speed of light and electron like particles.
In the third law of motion there explained that if external force does not exerts then stationary body will remain stable and moving body will remain moving. But in modern physics considering the cosmological view, the conception of stable bodies are ignored by few scientists. Because, in our universe everything is considered as the moving objects.
