Gassendi, Pierre, De proportione qua gravia decidentia accelerantur, 1646

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              <s id="s.000370">
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              ſub IL rursùs alia, cùm ipſa KL ſit eiuſdem qua­
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              drupla; atque ita porrò, ſeu vlteriùs pergas, ſeu
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              alia puncta intra eaſdem parteis lineæ AC, aliaſ­
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              que parallelas commemoratis interceptas, ſingulaſ­
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              que ſuis punctis reſpondenteis, accipias. </s>
              <s id="s.000371">Quare &
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              aſſumptis partibus æqualibus temporis per parteis
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              æqualeis lineæ AC repræſentatis,
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              eſt momenta,
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              ſeu incrementa velocitatis per parallelas repræſentatæ,
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              æqualia acquiri ſub huiuſmodi partibus; adeò vt
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              qualis gradus velocitatis acquiſitus eſt in fine primi
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              temporis vnus, talis alius, hoc eſt æqualis, ſit ipſi ſuper­
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              acquiſitus in fine ſecundi, ac ſint iam duo; & iterum
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              æqualis alius in fine tertij, ac ſin: iam tres; & rursùs
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              alius in fine quarti, ac ſint iam quatuor; atque ita de
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              cæteris, ſiue conſequentibus, ſiue interſumptis. </s>
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              <s id="s.000372">VIII. </s>
              <s id="s.000373">Sic itaque mihi videtur Motus æquabili­
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              ter, hoc eſt continenter, vniformiterque acceleratus
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              perquàm appoſitè definiri is,
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              Qui à quiete recedens
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              temporibus æqualibus æqualia celeritatis momenta
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              (aug­
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              mentave)
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              acquirat;
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              cùm præſertim non videam
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              poſſe ipſum alia ratione concipi, aut deſcribi talem.
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              </s>
              <s id="s.000374">Nam quod ſpectat quidem ad illam à te laudatam
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              definitionem, qua motus æquabiliter acceleratus deſ­
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              cribitur is,
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              Qui æqualibus spatiis æqualia celeritatis aug­
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              menta acquirit:
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              dic amabò quanam ratione concipere
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              exinde licear acceleratum æquabiliter motum? </s>
              <s id="s.000375">Eſto
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              enim ſpatium percurrendum v. c. linea AB in par­
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              teis æqualeis diuiſa ad puncta C, D, E, F, G, I, K.
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              </s>
              <s id="s.000376">Decidat mobile ex A; & in C fine primæ partis ac­
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              quiſierit primum velocitatis gradum; in D autem </s>
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        </body>
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