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

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              <pb o="133" file="0185" n="185" rhead="PARS SECUNDA"/>
            tota velocitate, vel vi obliqua compoſita eundem motum, vel
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            idem æquilibrium reſtituet, ac idem omnino erit, in effectuum
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            computatione conſiderare partes illas binas, & </s>
            <s xml:space="preserve">alteram, vel u-
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            tramque impeditam, ac conſiderare priorem totam, aut velo-
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            citatem, aut vim, compoſitam cum iis novis contrariis, & </s>
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            æqualibus illi parti, vel illis partibus, quæ dicebantur elidi.
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            </s>
            <s xml:space="preserve">In id autem, quod vel inſerne, vel ſuperne motum maſſæ cu-
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            juſpiam impedit, vel vim, non aget pars illa prioris velocita-
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            tis, vel illius vis, quæ concipitur reſoluta, ſed velocitas orta
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            a vi mutua, & </s>
            <s xml:space="preserve">contraria velocitati illi novæ genitæ in eadem
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            maſſa, a vi mutua, vel ipſa vis mutua, quæ ſemper debet a-
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            gere in partes contrarias, & </s>
            <s xml:space="preserve">cui occaſionem præbet illa deter-
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            minata diſtantia major, vel minor, quam ſit, quæ limites, & </s>
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            æquilibrium conſtitueret,</s>
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          <p>
            <s xml:space="preserve">280. </s>
            <s xml:space="preserve">Id quidem abunde apparet in ipſo ſuperiore exemplo.
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            </s>
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              <note position="right" xlink:label="note-0185-01" xlink:href="note-0185-01a" xml:space="preserve">Exemplum rei
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              in ipſo globo
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              molli incurren-
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              te in planum
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              immobile.</note>
            Ibi in fig. </s>
            <s xml:space="preserve">43 globus (quem concipiamus mollem) advenit
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            oblique per AB, & </s>
            <s xml:space="preserve">oblique impeditur a plano ejus progreſ-
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            ſus. </s>
            <s xml:space="preserve">Non eſt velocitas perpendicularis AF, vel EB, quæ ex-
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            tinguitur, durante AE, vel FB, uti diximus; </s>
            <s xml:space="preserve">nec illa urſit
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            planum CD. </s>
            <s xml:space="preserve">Velocitas AB occaſionem dedit globo acceden-
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            di ad planum CD uſque ad eam exiguam diſtantiam, in qua
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            vires variæ agerent; </s>
            <s xml:space="preserve">donec ex omnium actionibus conjunctis
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            impediretur ulterior acceſſus ad ipſum planum, ſive perpendi-
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            cularis diſtantiæ ulterior diminutio. </s>
            <s xml:space="preserve">Illæ vires agent ſimul in
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            directione perpendiculari ad ipſum planum juxta num. </s>
            <s xml:space="preserve">266:
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            </s>
            <s xml:space="preserve">debebunt autem, ut impediant ejuſmodi ulteriorem acceſſum,
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            producere in ipſo globo velocitatem, quæ compoſita cum tota
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            BO perſeverante in eadem directione AB, exhibeat velocita-
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            tem per BI parallelam CD. </s>
            <s xml:space="preserve">Quoniam vero triangula rectan-
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            gula AFB, BIO æqualia erunt neceſſario ob AB, BO æ-
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            quales; </s>
            <s xml:space="preserve">erit BEIO parallelogrammum, adeoque velocitas per-
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            pendicularis, quæ cum priore velocitate BO debeat compone-
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            re velocitatem per rectam parallelam plano, debebit neceſſario
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            eſſe contraria, & </s>
            <s xml:space="preserve">æqualis illi ipſi EB perpendiculari eidem
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            plano, in quam reſolvunt vulgo velocitatem AB. </s>
            <s xml:space="preserve">Interea ve-
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            ro vis, quæ ſemper agit in partes contrarias æqualiter, urſe-
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            rit planum tantundem, & </s>
            <s xml:space="preserve">omnes in eo produxerit effectus il-
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            los, qui vulgo tribuuntur globo advenienti cum velocitate e-
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            juſmodi, ut perpendicularis ejus pars ſit EB.</s>
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          <p>
            <s xml:space="preserve">281. </s>
            <s xml:space="preserve">Idem accidet etiam in reliquis omnibus caſibus ſuperius
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              <note position="right" xlink:label="note-0185-02" xlink:href="note-0185-02a" xml:space="preserve">Aliud globi de-
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              ſcendentis per
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              planum incli-
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              natum.</note>
            memoratis. </s>
            <s xml:space="preserve">Deſcendat globus gravis per planum inclinatum
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            CD (fig. </s>
            <s xml:space="preserve">44) oblique, quod in communi ſententia contin-
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            get hunc in modum. </s>
            <s xml:space="preserve">Reſolvunt gravitatem BO in duas, al-
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              <note position="right" xlink:label="note-0185-03" xlink:href="note-0185-03a" xml:space="preserve">Fig. 44.</note>
            teram BR perpendicularem plano CD, qua urgetur ipſum pla-
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            num, quod eum ſuſtinet; </s>
            <s xml:space="preserve">alteram BI, parallelam eidem pla-
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            no, quæ obliquum deſcenſum accelerat. </s>
            <s xml:space="preserve">In mea Theoria gra-
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            vitas cogit globum ſemper magis accedere ad planum CD;
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            </s>
            <s xml:space="preserve">donec diſtantia ab eodem evadat ejuſmodi; </s>
            <s xml:space="preserve">ut vires </s>
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