Ceva, Giovanni, Geometria motus, 1692

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              <s id="s.000394">
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              dem ABAE; hoc æquiualebit tribus AB, AC, AD. </s>
              <s id="s.000395">Mo­
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              bile igitur ex affectione trium illorum conatuum, vt ſup­
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              poſitum fuit, nitetur ſecundùm AF velocitate ipſa AF
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              Quod &c. </s>
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            <p type="margin">
              <s id="s.000396">
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              Gal. </s>
              <s id="s.000397">pr. de mo­
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              tu aquab.
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              </s>
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            <p type="main">
              <s id="s.000398">
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              DEF. I.
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              <s id="s.000399">ACcelerationem alicuius motus, tunc intelligimus,
                <expan abbr="cũ">cum</expan>
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              velocitates, quæ ſubinde mobili adueniunt, non de­
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              lentur, ſed prorſus integræ, atque indelebiles mobili in ipſo
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              motu perſeuerant. </s>
              <s id="s.000400">Ex quo ſequitur motum ſimplicem di­
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              ci, cum præteritæ velocitates protinus euaneſcunt, illæ­
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              que tantum conſiderantur, quæ mobili ſubinde oriun­
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              tur. </s>
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              PROP. IV. PROB. II.
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            <p type="main">
              <s id="s.000402">IMaginem accelerationis cuiuſcunque ſimplicis motus
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              exhibere. </s>
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            <p type="main">
              <s id="s.000403">Imago velocitatum ſimplicis motus eſto rectangulum
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                <arrow.to.target n="marg88"/>
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              AFDC: ſic motus eſt æquabilis, vt acceleretur debent in­
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              ſtanti C vigere omnes velocitates in imagine AFDC
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                prehenſæ</expan>
              , & item ducta quacunque BE parallela AF, vel
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              CD, erit mobile momento B affectum omnibus antece­
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              dentibus velocitatibus, comprehenſis nempe ab imaginis
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              portione AFEB; quare ſi ponamus HLG imaginem eſſę
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              accelerationis, itaut nempe tempus GL æquale ſit tempo­
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              ri AC; item KL æquale tempori AB, erit vt figura CAFD
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              ad figuram BAFE, ſic velocitas, qua mobile fertur
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                to</expan>
              G ad velocitatem, quam habet inſtanti K; & ideo quia
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              ponitur imago ſimplicis motus rectangulum AFDC, erit
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              rectangulum CF ad BF, hoc eſt recta CA ad AB immò
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              LG ad LK, vt GH ad KI; quamobrem GLH imago velo­
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              citatum huiuſmodi motus, erit triangulum. </s>
              <s id="s.000404">Quod ſi ima-</s>
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