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               <mods:name>
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                     <mods:roleTerm type="text">author</mods:roleTerm>
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                  <mods:namePart>Bertran Cànovas, Òscar</mods:namePart>
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               <mods:name>
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                  <mods:namePart>Riba Ruiz, Jordi-Roger</mods:namePart>
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                  <mods:dateIssued encoding="iso8601">2020-09-30</mods:dateIssued>
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               <mods:abstract>In this paper the classical well known solution of the elementary problem of the sphere loop in the presence of friction is studied. Also, a modification of the problem shows a possible inaccuracy involved on the well known solution found in many references. Finally the revised solution of the problem is presented.Postprint (author's final draft)</mods:abstract>
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               <mods:accessCondition type="useAndReproduction">http://creativecommons.org/licenses/by-nc-nd/3.0/es/ Open Access Attribution-NonCommercial-NoDerivs 3.0 Spain</mods:accessCondition>
               <mods:subject>
                  <mods:topic>Àrees temàtiques de la UPC::Física::Física de l'estat sòlid::Tribologia</mods:topic>
               </mods:subject>
               <mods:subject>
                  <mods:topic>Tribologia</mods:topic>
               </mods:subject>
               <mods:subject>
                  <mods:topic>Sphere loop</mods:topic>
               </mods:subject>
               <mods:subject>
                  <mods:topic>Rotation</mods:topic>
               </mods:subject>
               <mods:subject>
                  <mods:topic>Mechanics</mods:topic>
               </mods:subject>
               <mods:subject>
                  <mods:topic>Tribologia</mods:topic>
               </mods:subject>
               <mods:titleInfo>
                  <mods:title>A revised solution for a sphere rolling in a vertical loop</mods:title>
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               <mods:genre>Article</mods:genre>
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