Zanotti, Francesco Maria, Della forza de' corpi che chiamano viva libri tre, 1752

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            <s xml:id="echoid-s4204" xml:space="preserve">
              <pb o="290" file="0314" n="314" rhead="Della forza de’ corpi"/>
            gnor D. </s>
            <s xml:id="echoid-s4205" xml:space="preserve">Nicola, ma il Signor D. </s>
            <s xml:id="echoid-s4206" xml:space="preserve">Felice qui l’ in-
              <lb/>
            terruppe, e diſſe. </s>
            <s xml:id="echoid-s4207" xml:space="preserve">Ne io vi ho detto, ne potrei dir-
              <lb/>
            vi, ſeguendo l’ opinione del Padre Riccati, che le
              <lb/>
            potenze producano le velocità; </s>
            <s xml:id="echoid-s4208" xml:space="preserve">anzi vi dico, e
              <lb/>
            voglio ben, che intendiate, che qualſifia potenza
              <lb/>
            non altro produce mai, che la forza viva; </s>
            <s xml:id="echoid-s4209" xml:space="preserve">la forza
              <lb/>
            viva poi, benchè non produca la velocità, (per-
              <lb/>
            ciocchè, ſe la produceſſe, ſarebbe ad eſſa propor-
              <lb/>
            zionale,) però ſe la trae dietro, come un conſe-
              <lb/>
            guente; </s>
            <s xml:id="echoid-s4210" xml:space="preserve">e ſempre ſi trae dietro quella, che le con-
              <lb/>
            viene. </s>
            <s xml:id="echoid-s4211" xml:space="preserve">Io non voglio inſiſtere in queſto, riſpoſe
              <lb/>
            allora il Signor D. </s>
            <s xml:id="echoid-s4212" xml:space="preserve">Nicola; </s>
            <s xml:id="echoid-s4213" xml:space="preserve">ſebbene egli è una gran
              <lb/>
            diſperazione laſciar la velocità, per così dire, ab-
              <lb/>
            bandonata, e ſenza cauſa alcuna, che la produca;
              <lb/>
            </s>
            <s xml:id="echoid-s4214" xml:space="preserve">e molto più mi piacerebbe poter ſupporre, che
              <lb/>
            ella ſteſſa ſenza altro foſſe prodotta dalla potenza. </s>
            <s xml:id="echoid-s4215" xml:space="preserve">
              <lb/>
            Ma di queſto, come ho detto, non voglio io diſ-
              <lb/>
            putare ora; </s>
            <s xml:id="echoid-s4216" xml:space="preserve">tornando dunque a quello, che io di-
              <lb/>
            ceva, cangierò fraſe, e dirò che la potenza AB,
              <lb/>
            tirando il corpo da ſe ſola in
              <emph style="it">p</emph>
            , produce in eſſo
              <lb/>
            una forza viva 9, la qual ſi trae dietro come un ſuo
              <lb/>
            conſeguente la velocità 3. </s>
            <s xml:id="echoid-s4217" xml:space="preserve">Tirandolo poi in
              <emph style="it">r</emph>
            inſie-
              <lb/>
            me con la potenza AC, produce in eſſo la ſteſſa
              <lb/>
            forza viva 9, e queſta allora ſi trae dietro non più
              <lb/>
            la velocità 3, ma altra minore. </s>
            <s xml:id="echoid-s4218" xml:space="preserve">E ſimilmente la
              <lb/>
            potenza AC, tirando da ſe ſola il corpo in
              <emph style="it">q</emph>
            , pro-
              <lb/>
            duce in eſſo una forza viva 16, la qual ſi trae die-
              <lb/>
            tro, come un ſuo conſeguente, la velocità 4; </s>
            <s xml:id="echoid-s4219" xml:space="preserve">ti-
              <lb/>
            randolo poi in
              <emph style="it">r</emph>
            inſieme con la potenza AB, pro-
              <lb/>
            duce in eſſo la ſteſſa forza viva 16; </s>
            <s xml:id="echoid-s4220" xml:space="preserve">e queſta </s>
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