What is Centrifugal Force?

Centrifugal force is a virtual force and a manifestation of inertia, which keeps rotating objects away from its center of rotation. In Newtonian mechanics, centrifugal force has been used to express two different concepts: an inertial force, a centripetal force, observed in a non-inertial reference frame. In Lagrangian mechanics, centrifugal force is sometimes used to describe the generalized force in some generalized coordinates.

Centrifugal motion refers to the phenomenon that an object moves away from the center. United States

F = a * m

Fcentrifugal force;

a

On celestial bodies, satellites make inertial motion on the edge of the host star.

The concepts of inertial centrifugal force and centrifugal force are explained briefly:

We usually use the ground as the reference frame. We can assume that the ground is stationary, or that the ground motion is regarded as a linear motion at a constant speed over a short distance, that is, the inertial reference frame. It is under this premise that Newton has concluded the motion law. If the frame of reference is variable-speed, that is, a non-inertial frame of reference, Newton's law cannot be directly applied, so people have conceived "inertia" to solve the application of Newton's law. Inertial centrifugal force is an imaginary force in a non-inertial system. Here is an example of a uniform circular motion:

The linear velocity direction of a uniform circular motion changes at all times, indicating that there is centripetal acceleration, and the direction of centripetal acceleration also changes at all times. This is a typical non-inertial system. If there is a large turntable moving in a uniform circular motion, and you do nt look at the surrounding scenes when you sit on the plate, then you are placed in a non-inertial system, you will definitely feel that there is some kind of power to push yourself down. There is no force to push you, this kind of force is called inertial centrifugal force.

Finally, let me remind you that the so-called "inertial force" only exists in the non-inertial system. It is a virtual force. It is a virtual force that is used to extend Newton's law to the non-inertial system. In addition to Newton's third law, various laws and theorems in Newtonian mechanics can be applied to non-inertial systems.