document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=200514>Question 200514</A>: <I><SPAN STYLE=\"word-break: break-all;\"> the stiffness 'S' of a rectangular beam varies jointly as the width and the cube of the depth. if the stiffness is 90 when the width is 2 and the depth is 3, find the stiffness for a beam with a width of 5 and a depth of 2 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #150797 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=150797\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">  the stiffness 'S' of a rectangular beam varies jointly as the width and the cube of the depth. if the stiffness is 90 when the width is 2 and the depth is 3, find the stiffness for a beam with a width of 5 and a depth of 2<BR>\n" );
document.write( "-----------------<BR>\n" );
document.write( "S = k*w*d^3 (k is a constant)<BR>\n" );
document.write( "90 = k*2*27<BR>\n" );
document.write( "k = 90/54 = 5/3<BR>\n" );
document.write( "---------------<BR>\n" );
document.write( "S = (5/3)*5*2^3<BR>\n" );
document.write( "S = 200/3 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );