Newton's three laws (mechanics)

 Today we will discuss an interesting topic. We all must have heard the name of scientist Newton. Many people who study science make fun of him. One even expresses annoyance at him whenever he hears that he is contributing everywhere. Many people think that he is the one who discovered physics. But what is it really? No it's not. But his formulas are important not only in physics but in the whole subject. Actually physics is not about any one subject so no one can be said to be the father of it. Fundamentals of all subjects in Physics Fundamentals of all branches of science are actually here. But today I will know about the three important sources of the one who has the most contribution. These three formulas are very important in dynamics. We all know the statement of this formula in class 9-10 physics books, but many people do not know how much significance this formula has in our daily life. However today we will know three sutras with explanation.

Newton's First law:

"If no external force is applied to a stationary object, the stationary object remains at rest and the moving object continues to move with uniform momentum i.e. no acceleration."

This formula actually gives an explanation of inertia. Here then it is clear what force  actually .

So what do you force ?

The effect of which a stationary object moves or wants to move and the moving object changes its speed i.e. creates acceleration is called force. By this formula we see many examples in reality. It is shown in everything from driving a car to our work.

F= Ma   [ where acceleration =0

F=0 ,  force equal to zero. 

Newton's 2nd law: 

"The rate of change of momentum of an object with time is equal to the force acting on the object." That is, the greater the change in momentum of an object, the greater its force. Again, a force must be applied to an object of a given mass to change its momentum. The greater the force, the greater its acceleration. Then this also causes the acceleration of the object according to the first law.

So stand the equation, 

F= Ma  where a = m (dv/dt)

Newton's third law:

"A force exerted on an object is equal and opposite to the reaction force exerted by that object."

That is, if a force is applied to an object, that object also exerts an opposite force. We see examples of this formula in reality. The walk we are in is a real example of this formula. When we push an object, that object also exerts an opposite force on us and through this we feel the force. Bird flying in the sky, boat moving forward, airplane flying, string cutting are examples of Newton's third law. That stand equation 

F' = -F  

 Where F' is a first force and F is a reaction force.