Newton's Principia, sections I, II, III, with notes and illustrations. Also a collection of problems (1863)
Newton, Isaac, Sir, 1642-1727, Frost, Percival, 1817-1898 · Cambridge, London, Macmillan and Co · leaf 61
olygon;therefore, by Cor., Lemma IV, the moment of the arc, which 42 NEWTON. is ultimately that of the polygon, is equal to the moment ofac = ac. OB = chord A C. radius OB. Hence, the distance of the center of gravity of the arc from 0 _ radius x chordarc 8. To find the direction and magnitude of… … Let AB be the attracting rod, 0 the particle attracted by therod; draw OC perpendicular to AB, join OA, OB, and let acircle be described with center 0 and radius OC meeting OA,OB in a, b. Let OpP, OqQ be drawn cutting off the smallportions pq, PQ from the arc a Cb and the rod, respectively:and draw…
Mechanics · Celestial mechanics
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