document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=892679>Question 892679</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A sprinter runs 400 meters around a circular track and returns to her starting point, covering a total distance of 400 meters in 50 seconds. What was her average speed? Her average velocity? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #540726 by </B><A HREF=/tutors/aboutme.mpl?userid=Theo><B>Theo(13342)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Theo><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=Theo><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=540726\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> the average speed is 400 meters / 50 seconds = 8 meters per second.\r<BR>\n" );
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document.write( "i believe the average velocity is going to be 0.\r<BR>\n" );
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document.write( "the reason is that velocity measures displacement while speed measures distance.\r<BR>\n" );
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document.write( "the formula for average speed is total distance covered divided by total time.\r<BR>\n" );
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document.write( "the formula for average velocity is total displacement divided by total time.\r<BR>\n" );
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document.write( "displacement is the final position of the object minus the initial position of the object.\r<BR>\n" );
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document.write( "if the object ends up at the same point that it started from then the total displacement is equal to 0.\r<BR>\n" );
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document.write( "here's a good reference  that's reasonably easy to understand concerning average speed versus average velocity.\r<BR>\n" );
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document.write( "<a  rel=nofollow HREF= \"http://physics.tutorcircle.com/motion/average-velocity.html\" target = \"_blank\">http://physics.tutorcircle.com/motion/average-velocity.html</a>\r<BR>\n" );
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document.write( " </SPAN>\n" );
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