Centrifugal Force - a Few Surprises

Details Centrifugal Force - a Few Surprises Centrifugal Force - a Few Surprises

Aug 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990mnras.245..733a&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Vol. 245, NO.4/AUG15, P. 733, 1990

Astronomy and Astrophysics

Astronomy

74

Scientific paper

The need for a rather fundamental revision in understanding of the nature of the centrifugal force is discussed. It is shown that in general relativity (and contrary to the situation in Newtonian theory) rotation of a reference frame is a necessary but not sufficient condition for the centrifugal force to appear. A sufficient condition for its appearance, in the instantaneously corotating reference frame of a particle, is that the particle motion in space (observed in the global rest frame) differs from a photon trajectory. The direction of the force is the same as that of the gradient of the effective potential for photon motion. In some cases, the centrifugal force will attract towards the axis of rotation.

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