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Re: Centrifugal Force

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  • Re: Centrifugal Force

    Dear all,

    Can't resist having my two penneth/cents...

    There are three of these mysterious "fictitious" forces in physics, the
    other two being the Coriolis (as Gerry menioned) and the apparent force
    that is a consequence of motion in an accelerating reference frame.
    Those experiencing the forces cannot tell that they are fictitious in
    any sense. Indeed, the cornerstone of Einstein's theory of general
    relativity is the equivalence principle, which states that "fictitious
    forces cannot be distinguished in any way whatsoever from real forces,
    by any
    interior' experiment."

    Incidentally, I've always wondered why there are no centrifugal forces
    included David Winter's 2D inverse dynamics analysis (in Biomechanics
    and motor control of human movement and elsewhere). Did David leave
    these out because they are negligible in gait, or for soem other reason?

    Dr. Chris Kirtley MD PhD
    Associate Professor
    HomeCare Technologies for the 21st Century (Whitaker Foundation)
    NIDRR Rehabilitation Engineering Research Center on TeleRehabilitation
    Dept. of Biomedical Engineering, Pangborn 105B
    Catholic University of America
    620 Michigan Ave NE
    Washington, DC 20064
    Tel. 202-319-6247, fax 202-319-4287

    Clinical Gait Analysis:
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