<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>1870-3542</journal-id>
<journal-title><![CDATA[Revista mexicana de física E]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. mex. fís. E]]></abbrev-journal-title>
<issn>1870-3542</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Mexicana de Física]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1870-35422015000100003</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Obteniendo los coeficientes de restitución y arrastre en un solo experimento]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pavioni]]></surname>
<given-names><![CDATA[O.D.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ortega]]></surname>
<given-names><![CDATA[F.M.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Universidad Nacional del Centro de la Provincia de Buenos Aires Facultad de Ingeniería ]]></institution>
<addr-line><![CDATA[Olavarría Buenos Aires]]></addr-line>
<country>Argentina</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2015</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2015</year>
</pub-date>
<volume>61</volume>
<numero>1</numero>
<fpage>11</fpage>
<lpage>16</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1870-35422015000100003&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1870-35422015000100003&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1870-35422015000100003&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[En el presente trabajo se muestra una forma sencilla y novedosa de obtener el coeficiente de restitución correspondiente al choque entre una pelota y el piso, en la cual se obtiene, además, el coeficiente de arrastre característico de una superficie esférica.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[In this paper is shown a simple and novel way of finding the coefficient of restitution for the collision between a ball and the floor, where also the drag coefficient of a spherical shape is obtained.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Coeficiente de restitución]]></kwd>
<kwd lng="es"><![CDATA[coeficiente de arrastre]]></kwd>
<kwd lng="es"><![CDATA[número de Reynolds]]></kwd>
<kwd lng="en"><![CDATA[Coefficient of restitution]]></kwd>
<kwd lng="en"><![CDATA[drag coefficient]]></kwd>
<kwd lng="en"><![CDATA[Reynolds number]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[ 
	    <p align="justify"><font face="verdana" size="4">Educaci&oacute;n</font></p>
	    <p align="justify">&nbsp;</p>
	    <p align="center"><font face="verdana" size="4"><b>Obteniendo los coeficientes de restituci&oacute;n y arrastre en un solo experimento</b></font></p>
	    <p align="justify">&nbsp;</p>
	    <p align="center"><font face="verdana" size="2"><b>O.D. Pavioni and F.M. Ortega</b></font></p>
	    <p align="justify">&nbsp;</p>
	    <p align="justify"><font face="verdana" size="2"><i>Facultad de Ingenier&iacute;a U.N.C.P.B.A. Av. Del Valle 5737 &#45; B7400JWL &#45; Olavarr&iacute;a, Buenos Aires, Argentina. </i>e&#45;mail: <a href="mailto:opavioni@fio.unicen.edu.ar">opavioni@fio.unicen.edu.ar</a></font></p>
	    <p align="justify">&nbsp;</p>
	    <p align="justify"><font face="verdana" size="2">Received 27 October 2014;    ]]></body>
<body><![CDATA[<br>
    Accepted 16 January 2015</font></p>
	    <p align="justify">&nbsp;</p>
	    <p align="justify"><font face="verdana" size="2"><b>Resumen</b></font></p>
	    <p align="justify"><font face="verdana" size="2">En el presente trabajo se muestra una forma sencilla y novedosa de obtener el coeficiente de restituci&oacute;n correspondiente al choque entre una pelota y el piso, en la cual se obtiene, adem&aacute;s, el coeficiente de arrastre caracter&iacute;stico de una superficie esf&eacute;rica.</font></p>
    <p align="justify"><font face="verdana" size="2"><b>Palabras clave:</b> Coeficiente de restituci&oacute;n; coeficiente de arrastre; n&uacute;mero de Reynolds.</font></p>
    <p align="justify">&nbsp;</p>
    <p align="justify"><font face="verdana" size="2"><b>Abstract</b></font></p>
    <p align="justify"><font face="verdana" size="2">In this paper is shown a simple and novel way of finding the coefficient of restitution for the collision between a ball and the floor, where also the drag coefficient of a spherical shape is obtained.</font></p>
    <p align="justify"><font face="verdana" size="2"><b>Keywords:</b> Coefficient of restitution; drag coefficient; Reynolds number.</font></p>
    <p align="justify">&nbsp;</p>
    ]]></body>
<body><![CDATA[<p align="justify"><font face="verdana" size="2">PACS: 01.50.Pa; 01.50.Wg; 45.50.Tn; 47.27.Ak.</font></p>

    <p align="justify">&nbsp;</p>
    <p align="justify"><font face="verdana" size="2"><a href="/pdf/rmfe/v61n1/v61n1a3.pdf" target="_blank">DESCARGAR ART&Iacute;CULO EN FORMATO PDF</a></font></p>
    <p align="justify">&nbsp;</p>
    <p align="justify"><font face="verdana" size="2"><b>Referencias</b></font></p>
    <!-- ref --><p align="justify"><font face="verdana" size="2">1. P.A. Tipler, G. Mosca, <i>F&iacute;sica para la ciencia y la tecnolog&iacute;a</i> (Ed. Reverte, Espa&ntilde;a, 2005). Vol. 1, p. 226.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8462561&pid=S1870-3542201500010000300001&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>

    <!-- ref --><p align="justify"><font face="verdana" size="2">2. D.C. Giancoli, <i>Physics Principles with Application</i> (Prentice Hall, USA, 1985). p. 211.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8462563&pid=S1870-3542201500010000300002&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>

	    <!-- ref --><p align="justify"><font face="verdana" size="2">3. F.M. White, <i>Fluid Mechanics</i> (Mc Graw&#45;Hill, Nueva York, 2002). p. 453.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8462565&pid=S1870-3542201500010000300003&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>

	    <!-- ref --><p align="justify"><font face="verdana" size="2">4. R.S. Davis, <i>Equation for the Determination of the Density of Moist Air</i> (1981/91), Metrolog&iacute;a 29 (1992). p. 67&#45;70.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8462567&pid=S1870-3542201500010000300004&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>

	    <!-- ref --><p align="justify"><font face="verdana" size="2">5. R.H. Perry, D.W. Green, <i>Perry's Chemical Engineers' Handbook,</i> (Mc Graw &#45; Hill, Nueva York, 2008). p. 6&#45;52.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8462569&pid=S1870-3542201500010000300005&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>

	    <!-- ref --><p align="justify"><font face="verdana" size="2">6. R.P. Feynman, R.B. Leighton, M. Sand, <i>Feynman Lectures On Physics,</i> Vol. 2, (Addison&#45;Wesley, Reading, MA, 1964). p. 416.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8462571&pid=S1870-3542201500010000300006&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>
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</article>
