Baliani, Giovanni Battista, De motv natvrali gravivm solidorvm et liqvidorvm

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    <archimedes>
      <text>
        <body>
          <chap type="bk">
            <pb xlink:href="064/01/073.jpg"/>
            <subchap1 n="9" type="proposition">
              <p type="head">
                <s id="s.000520">PROPOSITIO IX.</s>
              </p>
              <subchap2 n="9" type="statement">
                <p type="main">
                  <s id="s.000521">Ductis a puncto superno perpendiculari, &
                    <lb/>
                  inclinata ad planum Orizontale, & a pun­
                    <lb/>
                  cto inferno perpendicularis ducta normali
                    <lb/>
                  ad inclinatam, impetus inclinatae in pun­
                    <lb/>
                  ctis, in quibus secat normalem, & orizon­
                    <lb/>
                  talem, sunt ut perpendicularis, & inclinata.</s>
                </p>
              </subchap2>
              <figure id="id.064.01.073.1.jpg" xlink:href="064/01/073/1.jpg" number="42"/>
              <subchap2 n="9" type="proof">
                <p type="main">
                  <s id="s.000522">Sint rectae AB AC ductae a puncto A ad orizon­
                    <lb/>
                  talem CB & a B ducatur normalis BD ad
                    <lb/>
                  AC.</s>
                </p>
                <p type="main">
                  <s id="s.000523">Dico impetum in D ad impetum in C esse ut AB
                    <lb/>
                  ad AC.</s>
                </p>
                <p type="main">
                  <s id="s.000524">Quoniam AC AD sunt in duplicata ratione im­
                    <lb/>
                  petus C ad impetum D
                    <arrow.to.target n="marg136"/>
                  .</s>
                </p>
                <p type="margin">
                  <s id="s.000525">
                    <margin.target id="marg136"/>
                  Per pr. huius.</s>
                </p>
                <p type="main">
                  <s id="s.000526">Sunt itidem in duplicata ratione AC ad AB
                    <arrow.to.target n="marg137"/>
                  .</s>
                </p>
                <p type="margin">
                  <s id="s.000527">
                    <margin.target id="marg137"/>
                  Per 14. pr. huius.</s>
                </p>
                <p type="main">
                  <s id="s.000528">Igitur impetus in C ad impetum in D sunt ut AC
                    <lb/>
                  AB
                    <arrow.to.target n="marg138"/>
                  quod, etc.</s>
                </p>
                <p type="margin">
                  <s id="s.000529">
                    <margin.target id="marg138"/>
                  Per pr. huius.</s>
                </p>
              </subchap2>
            </subchap1>
          </chap>
        </body>
      </text>
    </archimedes>