In a simple flat 2 dimensional plane of a two body orbit, both circular & elliptic.(adsbygoogle = window.adsbygoogle || []).push({});

How do you write the functions wrt “t” time for:

1) Force vector equation (that applies acceleration)

2) Velocity vector equation

3) Position vector equation

That allows applying simple calculus integration to obtain #3 from #2 and #2 from #1

Likewise simple calculus should show #1 as derivative of #2, and #2 as derivative of #3.

Are polar coordinates preferred?

or can X&Y coordinates work as well.

If two masses are both large, (from equal to one 10% of other) is it necessary to use a barycentre with a “reduced mass”?

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# Functions that define an orbit

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