# What is the Definition of Centripetal Force in Physics

## Definition of Centripetal Force

Definition:

The force that causes an object to move along a curve (or a curved path) is called centripetal force.

Mathematical Expression:

We know that the magnitude of centripetal acceleration of a body in uniform circular motions is directly proportional to the square of velocity and inversely proportional to the radius of the path Therefore,

a(c) < v2 (Here < represents the sign of proportionality do not write this in your examination and 2 represents square of v)

a(c) < 1/r

Combining both the equations:

a(c) < v2/r

From Newton’s Second Law of Motion:

F = ma

=> F(c) = mv2/r

Where,

Fc = Centripetal Force

m = Mass of object

v = Velocity of object

r = Radius of the curved path

Factors on which Fc Depends:

Fc depends upon the following factors:

1. Increase in the mass increases Fc.
2. It increases with the square of velocity.
3. It decreases with the increase in radius of the curved path.

Examples:

1. The centripetal force required by natural planets To move constantly round a circle is provided by the gravitational force of The sun.

1. If a stone tied to a string is whirled in a circle, the required centripetal force is supplied to it by our hand. As a reaction the stone exerts an equal force which is felt by our hand.

1. The pilot while turning his airplane tiIts one wing in the upward direction so that the air pressure may provide the required suitable Fc.

Note: Note that from the point of view of popularity, the leading positions are occupied by universities in such countries as England, Switzerland and the Netherlands. Graduates who graduated from higher education institutions in this country are always happy to hire. What are the main advantages of education abroad ? First, this is the high level of professionalism that they received after graduating from a foreign university. Getting a diploma in his hands, the student is a specialist in his field and is able at this stage to cope with any task set before him. Third, the system of education in foreign universities is an advantage. Unlike universities, where profile subjects are studied in conjunction with many other unnecessary concrete people, in universities in England, the Netherlands, Switzerland, the emphasis is on the specialization of the student, due to which he receives not only the general knowledge of the subject, but also in-depth knowledge that , of course, affects his professionalism. 