document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=989432>Question 989432</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A person of height 1.68 m is walking away from a lamp-post at 1.5 m/s. The light on the lamp-post is 5.3 m above the ground. \r<BR>\n" );
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document.write( "At what rate (in m/s to the nearest cm/s) is the length of the person's shadow changing?\r<BR>\n" );
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document.write( "s/5.3 = (s-p)/1.68 \r<BR>\n" );
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document.write( "1.68 s = 5.3 s - 5.3 p \r<BR>\n" );
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document.write( "3.62 s = 5.3 p \r<BR>\n" );
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document.write( "s = 1.464 p \r<BR>\n" );
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document.write( "ds/dt = 1.464 dp/dt \r<BR>\n" );
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document.write( "but dp/dt = 1.5 \r<BR>\n" );
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document.write( "so \r<BR>\n" );
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document.write( "ds/dt = 2.196 m/s \r<BR>\n" );
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document.write( "This answer was incorrect, I am not sure where I went wrong?\r<BR>\n" );
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document.write( "The next part of the question:\r<BR>\n" );
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document.write( "At what speed (in m/s to the nearest cm/s) is the tip of the person's shadow moving across the ground?\r<BR>\n" );
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document.write( "And I assume to get this, I take the answer from the first part, and add 1.5?\r<BR>\n" );
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document.write( "I have tried many ways but keep getting the first part incorrect \r<BR>\n" );
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document.write( "THANK YOU </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #609760 by </B><A HREF=/tutors/aboutme.mpl?userid=thesvw><B>thesvw(77)</B></A><img src=\"/images/stars/stars-08.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=thesvw><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=thesvw><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=609760\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Email me --- thesvw@gmail.com\r<BR>\n" );
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document.write( "I ll reply you with great explanation with pictures in less than 20 minutes.  </SPAN>\n" );
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