document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1182366>Question 1182366</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A man runs 200 yards East and then turns around and runs 50 yards West in 35 seconds what is the man's average velocity for this trip ?<BR>\n" );
document.write( "I added the yards 200 yard+50 yard = 250 yards then divided 250/35 . Is this correct </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #812364 by </B><A HREF=/tutors/aboutme.mpl?userid=ikleyn><B>ikleyn(52946)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ikleyn><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=ikleyn><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=812364\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .\r<BR>\n" );
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document.write( "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;This problem &nbsp;TEACHES &nbsp;you &nbsp;<U>to distinct</U> &nbsp;between &nbsp;<U>average velocity</U> &nbsp;and &nbsp;<U>average speed</U> \r<BR>\n" );
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document.write( "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(which in this problem is the same as average rate).\r<BR>\n" );
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document.write( "To calculate average speed &nbsp;(or average rate), &nbsp;you should take the total traveled distance and divide it by the full spent traveled time.\r<BR>\n" );
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document.write( "But &nbsp;THIS &nbsp;PROBLEM &nbsp;asks about the average <U>velocity</U>.\r<BR>\n" );
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document.write( "Velocity is the vector, &nbsp;in distinct of speed and of rate.\r<BR>\n" );
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document.write( "To calculate average velocity, &nbsp;you should take the &nbsp;<U>displacement vector</U> &nbsp;and divide it by the full spent traveled time.\r<BR>\n" );
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document.write( "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;In this problem, &nbsp;the displacement is &nbsp;THE &nbsp;DIFFERENCE &nbsp;&nbsp;200 yards &nbsp;&nbsp;MINUS &nbsp;&nbsp;50 yards = 200 - 50 = 150 yards\r<BR>\n" );
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document.write( "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;and you should divide it by &nbsp;35 &nbsp;seconds.\r<BR>\n" );
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document.write( "So, &nbsp;the average velocity magnitude is  &nbsp;&nbsp;<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28200-50%29%2F35 ALIGN=MIDDLE  ALT=\"%28200-50%29%2F35\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=150%2F35 ALIGN=MIDDLE  ALT=\"150%2F35\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 4.286 yards per second.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<U>ANSWER</U><BR>\n" );
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document.write( "Solved and explained.\r<BR>\n" );
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