13 Facts About Centrifugal force

In Newtonian mechanics, the centrifugal force is an inertial force that appears to act on all objects when viewed in a rotating frame of reference.

Concept of centrifugal force can be applied in rotating devices, such as centrifuges, centrifugal pumps, centrifugal governors, and centrifugal clutches, and in centrifugal railways, planetary orbits and banked curves, when they are analyzed in a rotating coordinate system.

Centrifugal force is an outward force apparent in a rotating reference frame.

Common experience that gives rise to the idea of a centrifugal force is encountered by passengers riding in a vehicle, such as a car, that is changing direction.

The centrifugal force must be included in the passenger's reference frame : it counteracts the leftward force applied to the passenger by the seat, and explains why this otherwise unbalanced force does not cause them to accelerate.

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However, it would be apparent to a stationary observer watching from an overpass above that the frictional Centrifugal force exerted on the passenger by the seat is not being balanced; it constitutes a net Centrifugal force to the left, causing the passenger to accelerate toward the inside of the curve, as they must in order to keep moving with the car rather than proceeding in a straight line as they otherwise would.

However, the Centrifugal force applied by the string is still acting on the stone.

For example, in an Earth-bound reference system, the fictitious force is enormous and is responsible for the Sun orbiting around the Earth .

The centrifugal force must be included to make the sum of the forces be zero to match the apparent lack of acceleration.

Similarly, as the centrifugal force is proportional to the distance from object to the axis of rotation of the frame, the centrifugal force vanishes for objects that lie upon the axis.

That the Earth is itself an oblate spheroid, bulging at the equator where the radial distance and hence the centrifugal force is larger, is taken as one of the evidences for its absolute rotation.

Conception of centrifugal force has evolved since the time of Huygens, Newton, Leibniz, and Hooke who expressed early conceptions of it.

Centrifugal force has played a role in debates in classical mechanics about detection of absolute motion.