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Superphysics
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Research
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Newton, Isaac
/
Principia
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Book 1
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Section 6
How to find motion in orbits
We simplify Section 3 of Principia Mathematica by Isaac Newton
Proposition 30 Problem 22
Parabola
Proposition 30 Lemma 28
Ovals
Proposition 31 Problem 23
Elliptic trajectory