Many satellites move in a circular path around the earth and make it possible for us to have television, navigation like GPS, satellite radio, and much more.

There are more uses of Circular path : Ceiling fan's blades rotating around a hub, a stone that is tied to a rope and is being swung in circles, a car turning through a curve in a race track, an electron moving perpendicular to a uniform magnetic field, etc.

But How are these objects staying in a Circular Path?

Centripetal Force

It is Staying in that Motion because of a Force towards the Centre : Centripetal Force.

Centripetal force is the force on an object on a circular path that keeps the object moving on the path. It's always directed towards the center of the path, at right angles to the object's motion.

Factors and Equations

There are 3 Factors for a Force :

1. Speed increases if Force Increases.

2. Radius decreases if Force Increases.

3. More Force is needed for More Mass.

Centripetal force is generated as an attractive force between two objects. This attraction can be the result of a physical connection (tension), gravitational, magnetic, or electrical attraction, as well as the force of friction.

The Equation for Centripetal Force : Fc = mv^2 / r