Philosophiæ naturalis principia mathematica autore Js. Newton ...

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Title: Philosophiæ naturalis principia mathematica autore Js. Newton ...
Author: Newton, Isaac, Sir, 1642-1727.
Publication: Londini :: Jussu Societatis Regiae ac Typis Josephi Streater ...,; 1687.
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Subject terms: Mechanics -- Early works to 1800.; Celestial mechanics -- Early works to 1800.
Link to this Item: http://name.umdl.umich.edu/A52251.0001.001
Cite this Item: "Philosophiæ naturalis principia mathematica autore Js. Newton ..." In the digital collection Early English Books Online. https://name.umdl.umich.edu/A52251.0001.001. University of Michigan Library Digital Collections. Accessed May 1, 2025.

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Prop. XVII. Prob. V.

Invenire & vim centripetam & Medii resistentiam qua corpus in data Spirali data lege revolvi potest. Vide Fig. Prop. XV.

Sit spiralis illa PQR. Ex velocitate qua corpus percurrit ar∣cum quam minimum PQ dabitur tempus, & ex altitudine TQ, quae est ut vis centripeta & quadratum temporis, dabitur vis. De∣inde ex arearum, aequalibus temporum particulis confectarum PSQ & QSR, differentia RSr, dabitur corporis retardatio, & ex re∣tardatione invenietur resistentia ac densitas Medii.