A force is a pull or push which acts on an object or a body. Some examples of force are gravitational force, frictional force, centripetal force. magnetic force etc. The force changes or tries to change the position, direction and speed of an object. Force acting on objects differently depending on the type of motion they exhibit.
Centripetal force is the force which acts towards the centre of the circular path
Centripetal force
Centripetal force – These forces are acting on the object in curvilinear motion which is directed towards the axis of rotation or centre of curvature.
The unit of centripetal force is newton.
The centripetal force is always acting in the direction perpendicular to the direction of the object’s displacement.
By using Newton’s second law of motion.
It is found that the centripetal force of an object which is moving in a circular path always acts towards the centre of the circle.
Formula of Centripetal Force
The Centripetal Force Formula is given as-
It is the product of mass (m) and the square of tangential velocity (v) divided by the radius (r) which implies that on twice the tangential velocity the centripetal force will be four times.
Mathematically it is written as-
F = mv2/r
Where
F = Centripetal force
m = mass of the object
v = speed or velocity of the object and r is the radius
Centrifugal force
Centrifugal force – It is a pseudo force in a circular motion which acts along the radius and it is directed away from the centre of the circle.
Centrifugal force does not exist when measurements are made in an Internal frame of reference.
Formula of Centrifugal Force
A centrifugal force formula is the same as centripetal force (which describes a real phenomenon) and the direction of the force is reversed, to describe the fictitious centrifugal force.
F = -mv2/r
Where
F = Centrifugal force
m = mass of the object
v = speed or velocity of the object and r is the radius.
Difference between Centripetal Force and Centrifugal Force
| Difference between Centripetal Force and Centrifugal Force | |
|---|---|
| Centripetal Force | Centrifugal Force |
| It’s direction is towards centre of curvature | It’s direction is away from the centre of curvature |
| Centripetal Force is observed from the inertial frame of reference | Centrifugal Force is observed from the Non- Inertial frame of reference |
| It’s force is acting towards the axis of rotation | It’s force is acting outward of the axis of rotation |
| Centripetal Forces are real force | Centrifugal Force are pseudo force |
Application of Centripetal Force and Centrifugal Force
The application of Centripetal and Centrifugal force are given as-
Centripetal Force
- These forces are also present in the motion of the planets.
- It is also present in the motion of electrons around the nucleus.
- These are used in a cream separator.
Centrifugal Force
- These forces are used in centrifugal machines
- It is used in space simulations
- It is also used in centrifugal casting
Example of Centripetal Force and Centrifugal Force
The example of centripetal force and centrifugal force are given as
Centripetal Force
- Spinning a ball on string
- Turning a car
- Driving a vehicle on curves
- An orbiting planet
Centrifugal Force
- The spinning of washing machine
- Banking of the roads
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The Centripetal Force Formula is given as the product of mass (in kg) and tangential velocity (in meters per second) squared, divided by the radius The formula for Centripetal force is give as- F =mv2/r Centrifugal force is a pseudo force in a circular motion which acts along the radius and is directed away from the centre of the circle. Earth revolves around the sun Spinning a ball on a string Centripetal Force Centrifugal Force Centrifugal Force is observed from the Non- Inertial frame of reference Centripetal And Centrifugal Force FAQs
What is the formula for Centripetal force?
What is Centrifugal Force?
Write two examples of Centripetal Force?
Write one difference between Centripetal Force and Centrifugal Force?
Centripetal Force is observed from the inertial frame of reference
