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Re: [Phys-L] coffee

On 2020/Jan/31, at 12:13, John Denker via Phys-l <> wrote:

I have used the language of accelerated frames. Yeah,
I know that almost all introductory physics books scream
and shout that accelerated frames do not exist, and
therefore centrifugal forces don't exist, but I refuse
to play along. Students have plenty of experience with
real-world cars and bicycles and playground merry-go-rounds
and other situations where it is entirely conventional
and reasonable to choose an accelerated frame.

Here’s UCSC's accelerated frame: <>

I add to GB’s history: When the earthquake (1989) required the labs. move, the merry-go-round was to be abandoned, I vociferously demanded that it be retained and appropriately moved.

bc … formerly labs. mgr. And independently coined the term “frame force”.