document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=191036>Question 191036</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/9780395977255/algebrahomeworkh>algebra and trigonometry structure and method book 2</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\">  In problems 11 and 12, use the fact that the load a beam with a rectangular cross section can support is jointly proportional to the beams width and the square of its depth and inversely proportional to it's length. <BR>\n" );
document.write( "11. A beam 2 cm wide and 5cm deep can support a load of 630kg. What load can it support when turned on its side? <BR>\n" );
document.write( "please please please explain what you are doing if you answer this problem. it is so confusing i cant even think of what to do.<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #143416 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=143416\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> In problems 11 and 12, use the fact that the load a beam with a rectangular cross section can support is jointly proportional to the beams width and the square of its depth and inversely proportional to it's length.<BR>\n" );
document.write( "load  = k[wd^2/L]<BR>\n" );
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document.write( "11. A beam 2 cm wide and 5cm deep can support a load of 630kg. What load can it support when turned on its side? <BR>\n" );
document.write( "1st You need to solve for \"k\"<BR>\n" );
document.write( "630 = k[2*5^2/L]<BR>\n" );
document.write( "630 = k[50/L]<BR>\n" );
document.write( "k = 630L/50 <BR>\n" );
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document.write( "Now you know the equation for this beam is load = [630L/50][wd^2/L]<BR>\n" );
document.write( "load = 630wd^2/50<BR>\n" );
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document.write( "Now if you turn the beam on its side w = 5 and depth = 2, so you get:<BR>\n" );
document.write( "load = 630*5*2^2/50 <BR>\n" );
document.write( "load = 630*20/50<BR>\n" );
document.write( "load = 630(2/5)<BR>\n" );
document.write( "load = 126*2 = 252 kg<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.\r<BR>\n" );
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document.write( "please please please explain what you are doing if you answer this problem. it is so confusing i cant even think of what to do.<BR>\n" );
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