I think I remember this particular topic you just treated. I was having issues with it many years ago
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Thanks for stopping by. Motion is described by the laws of kinematics using quantities such as: velocity, acceleration and trajectory. Perhaps I should have also mentioned the motion of the planets, described by Johannes Kepler, a 17th century German astronomer. He was the first to give a convincing description of the motion of the planets, saying that each planet describes an elliptical orbit around the Sun, which occupies one of the two foci of the ellipse. With the instruments that were available at the time, defining this motion, in my opinion, was a very difficult task. !DHEDGE