Re: [Phys-l] Centrifugal redux

[Bernard Cleyet <bernardcleyet@redshift.com>]

One may further complicate students' thinking by pointing out the  
direction of centrifugal force changes at a certain radius when  
circling a black hole.

bc  just beginning his massive project scanning old Sci. Ams' TOCs

On 2009, Mar 18, , at 13:21, LaMontagne, Bob wrote:

> The reason I posted my comment, and the problem I have with using
> centrifugal force, is that students tend to use the term without the
> necessary mental change in reference frame to a rotating frame of
> reference. In an inertial frame, the centrifugal force in actuality  
> does
> NOT exist and it is not correct to refer to it. If I am to accept the
> students use of the term, I need to be convinced that he/she is using
> the correct reference frame to give meaning to the centrifugal force.