https://mec.etseib.upc.edu/ca/index.php?title=Especial:Canvis_recents Segueix en aquest canal els canvis més recents del wiki. ca MediaWiki 1.37.1 Fri, 05 Jun 2026 05:30:38 GMT https://mec.etseib.upc.edu/ca/index.php?title=D4._Teoremes_vectorials&diff=7945&oldid=7823 https://mec.etseib.upc.edu/ca/index.php?title=D4._Teoremes_vectorials&diff=7945&oldid=7823 <p><span dir="auto"><span class="autocomment">✏️ Exemple D4.6: màquina d’Atwood</span></span></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="ca"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Versió més antiga</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revisió del 15:39, 3 juny 2026</td> </tr><tr><td colspan="4" class="diff-multi" lang="ca">(Hi ha 2 revisions intermèdies del mateix usuari que no es mostren)</td></tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l591">Línia 591:</td> <td colspan="2" class="diff-lineno">Línia 591:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>SIST: bloc de 10kg&lt;br&gt;</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>SIST: bloc de 10kg&lt;br&gt;</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>&lt;math&gt;\sum \overline{\mathbf{F}}_\mathrm{ext}(\Os)=(10\ks\gs)\overline{\mathbf{a}}_\Ts(\mathrm{bloc}) \quad \Rightarrow \quad (\downarrow 100\Ns)+(\uparrow \Ts_1)=(10\ks\gs)(\<del style="font-weight: bold; text-decoration: none;">uparrow </del>2\rs \ddot{\theta})&lt;/math&gt;&lt;br&gt;</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>&lt;math&gt;\sum \overline{\mathbf{F}}_\mathrm{ext}(\Os)=(10\ks\gs)\overline{\mathbf{a}}_\Ts(\mathrm{bloc}) \quad \Rightarrow \quad (\downarrow 100\Ns)+(\uparrow \Ts_1)=(10\ks\gs)(\<ins style="font-weight: bold; text-decoration: none;">downarrow </ins>2\rs \ddot{\theta})&lt;/math&gt;&lt;br&gt;</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> </table> Wed, 03 Jun 2026 15:39:40 GMT Eantem https://mec.etseib.upc.edu/ca/index.php?title=Discussi%C3%B3:D4._Teoremes_vectorials