document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1108775>Question 1108775</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help me answer the following question:<BR>\n" );
document.write( "A graph that is deflection (y-axis) vs load (x-axis) produces a straight line. <BR>\n" );
document.write( "Prove that the deflection at the centre of a beam equation which is: <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+Y=+WL%5E3%2F48EI+ ALIGN=MIDDLE  ALT=\"+Y=+WL%5E3%2F48EI+\"   DISABLED_style= \"max-width:90%; height:auto;\" > produces a straight line.<BR>\n" );
document.write( "where: Y= Deflection(m), W =Load(N), L =Length (m), E =Young’s Modulus (N/m^2)  and I =Second moment of Area (m^4)  <BR>\n" );
document.write( "So prove that <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+Y=+WL%5E3%2F48EI+ ALIGN=MIDDLE  ALT=\"+Y=+WL%5E3%2F48EI+\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=Y=mx+%2B+c+ ALIGN=MIDDLE  ALT=\"Y=mx+%2B+c+\"   DISABLED_style= \"max-width:90%; height:auto;\" > where C (where the line crosses the Y axis)= 0<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #723931 by </B><A HREF=/tutors/aboutme.mpl?userid=Boreal><B>Boreal(15235)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Boreal><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=Boreal><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=723931\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> y is proportional to the first power of W, so that is enough to make that a straight line or a linear function.\r<BR>\n" );
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document.write( " L^3/(48 EI) is the slope of that line. The units are m^3*m^2/N*m^4=m/N<BR>\n" );
document.write( "There is no y-intercept, because the L^3/48EI is the slope. </SPAN>\n" );
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