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How to simulate orbits?
I was trying to code a simulator of a solar system, but I cannot find out the orbit trajectory equation. I have simulated my orbits with perfect circles by using the $\cos \alpha$ and $\sin \alpha$, ...
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1
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Angular acceleration of ball when falling [duplicate]
Why is it assumed that angular acceleration is 0 when a ball is midair after rolling off a surface with constant velocity?