imes round that point. Let a moving U J l. i. A FiS- 29« body be at A,having a veloci-ty which wouldcarry it to B,say in one sec-ond of time. Bythe law of iner-tia, it wouldmove from B toC, an equal dis-tance, in the next second of time. But during this secondinterval of time, let us suppose it… … Its demon-stration. verse of thetheorem. 164 ASTRONOMY. Chap. ii. Now in the first interval of time, we supposed the movingbody described the triangle SAB. The second interval, itwould have described the triangle S B C, if undisturbed byany force at S, but by such a force it describes the triangleS…
Astronomy
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