The elements of natural and experimental philosophy .. (1834)
Phillips, R. (Richard), Sir, 1767-1840, Smith, E. A · New York, M'Elrath, Bangs & Herbert · leaf 272
t which occasionsthe latter a centripetal force, and though gravitation is mutualbetween all the planets, being directly as the quantities of matterthey contain, and inversely as the squares of their distances fromeach other ; yet the motions of the planets are not much affectedby it; for their… … 2. Suppose P, Fig. 82, a planetat rest, acted upon by a force whichtends to carry it towards G, whichforce is directed towards a centre,and called the gravitating force;hut at the same instant an otherforce, acting at right-angles to theformer, tends to carry it towards F;the two forces will ojf…
Physics
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