Bošković, Ruđer Josip, Theoria philosophiae naturalis redacta ad unicam legem virium in natura existentium

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            ponent directam per CH contrariam directioni tendenti ad
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            rectam A B. </s>
            <s xml:space="preserve">At in primo caſu habebuntur attractiones CL,
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            C K, quæ component vim CF directam verſus A B, quo ca-
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            ſu attractio AP cum repulſione AR, & </s>
            <s xml:space="preserve">attractio BV cum
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            repulſione BS component vires AQ, BT, quibus puncta A,
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            B ibunt obviam puncto C redeunti ad rectam tranſituram per
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            illud punctum E, quod eſt in triente rectæ DC, & </s>
            <s xml:space="preserve">de quo ſu-
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            pra mentionem fecimus num. </s>
            <s xml:space="preserve">205.</s>
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            <s xml:space="preserve">225. </s>
            <s xml:space="preserve">Hæc Theoria generaliter etiam non rectilineæ tantum,
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              <note position="left" xlink:label="note-0156-01" xlink:href="note-0156-01a" xml:space="preserve">Theoria gene.
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              ralior indicata:
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              trium puncto.
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              rum jacentium
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              in directum: vis
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              maxima ad con
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              ſervandam di-
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              ſtantiam.</note>
            ſed & </s>
            <s xml:space="preserve">cuivis poſitioni trium maſſarum applicari poteſt, ac ap-
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            plicabitur infra, ubi etiam generale ſimpliciſſimum, ac ſæcun-
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            diſſimum theorema eruetur pro comparatione virium inter ſe;
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            </s>
            <s xml:space="preserve">ſed hic interea evolvemus nonnulla, quæ pertinent ad ſimpli-
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            ciorem hunc caſum trium punctorum. </s>
            <s xml:space="preserve">Inprimis fieri utique
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            poteſt, ut ejuſmodi tria puncta poſitionem ad ſenſum rectili-
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            neam retineant cum prioribus diſtantiis, utcunque magna fue-
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            rit vis, quæ illa dimovere tentet, vel utcunque magna veloci-
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            tas impreſſa fuerit ad ea e ſuo reſpectivo ſtatu deturbanda. </s>
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            Nam vires ejuſmodi eſſe poſſunt, ut tam in eadem directione
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            ipſius rectæ, quam in directione ad eam perpendiculari, adeo-
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            que in quavis obliqua etiam, quæ in eas duas reſolvi cogita-
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            tione poteſt, validiſſimus exurgat conatus ad redeundum ad
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            priorem locum, ubi inde diſceſſerint puncta. </s>
            <s xml:space="preserve">Contra vim
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            impreſſam in directione ejuſdem rectæ ſatis eſt, ſi pro puncto
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            medio attractio plurimum creſcat, aucta diſtantia ab utrolibet
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            extremo, & </s>
            <s xml:space="preserve">plurimum decreſcat, eadem imminuta; </s>
            <s xml:space="preserve">ac pro u-
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            trovis puncto extremo ſatis eſt, ſi repulſio decreſcat plurimum
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            aucta diſtantia ab extremo, & </s>
            <s xml:space="preserve">attractio plurimum creſcat, au-
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            cta diſtantia a medio, quod ſecundum utique fiet, cum, ut
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            dictum eſt, debeat attractio medii in ipſum creſcere, aucta di-
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            ſtantia. </s>
            <s xml:space="preserve">Si hæc ita ſe habuerint, ac vice verſa; </s>
            <s xml:space="preserve">differentia
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            virium vi extrinſecæ reſiſtet, ſive ea tentet contrahere, ſive di-
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            ſtrahere puncta, & </s>
            <s xml:space="preserve">ſi aliquod ex iis velocitatem in ea dire-
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            ctione acquiſiverit utcunque magnam, poterit differentia virium
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            eſſe tanta, ut extinguat ejuſmodi reſpectivam velocitatem tem-
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            puſculo, quantum libuerit, parvo, & </s>
            <s xml:space="preserve">poſt percurſum ſpatio-
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            lum, quantum libuerit, exiguum.</s>
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          <p>
            <s xml:space="preserve">226. </s>
            <s xml:space="preserve">Quod ſi vis urgeat perpendiculariter, ut ex. </s>
            <s xml:space="preserve">gr. </s>
            <s xml:space="preserve">pun-
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              <note position="left" xlink:label="note-0156-02" xlink:href="note-0156-02a" xml:space="preserve">Quid ubi vis
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              externa urgeat
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              in latus: idea
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              virgæ rigidæ,
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              & virgæ flexi-
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              lis.</note>
            ctum medium D moveatur per rectam DC perpendicularem
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            ad AB; </s>
            <s xml:space="preserve">tum vires CK, CL poſſunt utique eſſe ita validæ,
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            ut vis compoſita CF ſit poſt receſſum, quantum libuerit,
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            exiguum ſatis magna ad ejuſmodi vim elidendam, vel ad ex-
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            tinguendam velocitatem impreſſam. </s>
            <s xml:space="preserve">In caſu vis, quæ conſtan-
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            ter urgeat, & </s>
            <s xml:space="preserve">punctum D verſus C, & </s>
            <s xml:space="preserve">puncta A, B ad par-
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            tes oppoſitas, habebitur inflexio; </s>
            <s xml:space="preserve">ac in caſu vis, quæ agat in ea-
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            dem directione rectæ jungentis puncta, habebitur contractio, ſeu
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            diſtractio; </s>
            <s xml:space="preserve">ſed vires reſiſtentes ipſis poterunt eſſe ita validæ, ut
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            & </s>
            <s xml:space="preserve">inflexio, & </s>
            <s xml:space="preserve">contractio, vel diſtractio, ſint prorſus inſenſibiles;</s>
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