Is how we choose to describe relative velocity arbitrary?(adsbygoogle = window.adsbygoogle || []).push({});

For example, say I am floating in space with only Ball A and Ball B for reference. Ball A is moving away from me at 10mph, and Ball B at 20mph. I could say that I am stationary, and Ball A and Ball B are traveling at 10 and 20mph, respectively, or I could say that Ball A is stationary, and I am moving away from it at 10mph, and Ball B is moving away from me at 10mph.

Assuming acceleration is not involved, is how I describe this situation totally arbitrary?

Thanks!

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# Are descriptions of relative velocity arbitrary?

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