What is the principle of launching satellite ?

Question

I always wonder how satellite is launched in space. What is the reason behind it ?

Answer 1

Natural Satellite :

It is a heavenly body which revolves in a stable orbit around a planet with the sun at one of its focus.

Artificial Satellite :

A satellite put to in its orbit around a planet artificially by a man is called an artificial satellite. For example : Sputnik II, Apollo flights and Rohini II.

Principle of launching satellite :

If a man is standing on the top of a tower and if he throws an object from there, then it will first reach the point A_1. If velocity is further increased, it will then reach the point A_2. Now, if velocity is increased again, it will start moving in a stable circular path. In this way, a satellite is launched.