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1 vote
1 answer
2k views

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 $\sin \alpha$, ...
Álvaro Rodrigo's user avatar
0 votes
1 answer
357 views

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?
Deen Qureshi's user avatar