Laws Of Motion

Hii everyone,

Today i am going to start a topic in physics which is Newton's Laws Of Motion. It is one of my favourite topic in physics. 

Newton's laws of motion are of central importance in classical physics. A large number of principles and results may be derived from Newton's laws. The first two laws relate to the type of motion of a system that results from a given set of forces. 

First Law of Motion: 

If the vector sum of all the forces acting on a particle is zero then and only then the particle remains unaccelerated ( i.e., remains at rest or moves with constant velocity ). 

                        " vector a=0 if and only if vector F =0 "

Second Law of Motion:

The acceleration of a particle as measured from an inertial frame is given by the vector sum of all the forces acting on the particle divided by its mass.

                              vector a = vector F/m

Third Law of Motion: 

To every action, there is always an equal and opposite reaction.

Goodbye!!