Its not actually a homework . i am just wondering .(adsbygoogle = window.adsbygoogle || []).push({});

If we have 2 masses M and m where m rotates about M on either orbit1 of radius R with speed V or orbit 2 of radius r with seepd v , wouldn't its speed ratio V/v equal the following

V/v = (sqrt(GM/R))/(sqrt(GM/r)) where G is gravitation constant :/ ??

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# Homework Help: Simple question about rotational motion

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