Definition of a specific kind of motion

AI Thread Summary
The discussion revolves around finding an appropriate English translation for a specific term in mechanics that describes the motion of a moving reference frame relative to a fixed primary reference frame. Participants suggest terms like "relative frame motion" and "frame rotation," while one contributor proposes "absolute motion" as a potential translation. The conversation highlights the difficulty in accurately translating technical terminology in physics. The need for precise language in mechanics is emphasized, particularly for clarity in formulas and definitions. Overall, the search for the correct term underscores the complexities of technical translations in scientific contexts.
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Homework Statement



It is not really a homework question, but rather a translation problem. I searched everywhere, but I still cannot find a good translation into English of a term that is defined as:

"In mechanics, the motion of a moving reference frame relative to another (primary) reference frame that is considered fixed".

Homework Equations



...the linear velocity Vkof particle k, due to such {"frame rotation/motion" ? the term I'm looking for }, is defined by formula
CmXwcvc.png

where
VBgSHQ6.png
is a vector of the angular rate of rotation of the two-dimensional system relative to axis Z of the three-dimensional reference frame, ez is a unit vector along axis Z, index i enumerates time moments of the two-dimensional world...

The Attempt at a Solution



(relative) frame motion / rotation

I'd be immensely thankful for any help!
 
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I would call that 'absolute motion.'
 
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