Relation To Inertial Centrifugal Force
Reactive centrifugal force, being one-half of the reaction pair together with centripetal force, is a concept which applies in any reference frame. This distinguishes it from the inertial or fictitious centrifugal force, which appears only in rotating frames.
| Reactive centrifugal force | Inertial centrifugal force | |
|---|---|---|
| Reference frame |
Any | Only rotating frames |
| Exerted by |
Bodies moving in curved paths |
Acts as if emanating from the rotation axis, it is a so-called fictitious force or d'Alembert force |
| Exerted upon |
The object(s) causing the curved motion, not upon the body in curved motion |
All bodies, moving or not; if moving, coriolis force is present as well |
| Direction | Opposite to the centripetal force causing curved path |
Away from rotation axis, regardless of path of body |
| Kinetic analysis | Reaction to the centripetal force |
Included as a fictitious force in Newton's second law according to D'Alembert's principle |
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