document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1209832>Question 1209832</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A body of weight 500N rests on a plane inclined at 20o to the horizontal.  The coefficient of friction <BR>\n" );
document.write( "is 0.4, determine a force F at an angle of 15o to the plane required to  <BR>\n" );
document.write( "(a) Pull the body upwards  <BR>\n" );
document.write( "(b) Push the body downwards <BR>\n" );
document.write( "(c) Pull the body downwards <BR>\n" );
document.write( "(d) Push the body upwards  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #851957 by </B><A HREF=/tutors/aboutme.mpl?userid=ikleyn><B>ikleyn(52781)</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=851957\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "The solution to this problem in the post by @CPhill is INCORRECT.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "The fact is that the applied force at 15° to the inclined plane DECREASES the normal force<BR>\n" );
document.write( "produced by the weight.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "In the solution by @CPhill the applied force at 15° to the inclined plane, in opposite, <BR>\n" );
document.write( "INCREASES the normal force produced by the weight, which is physically absurdist.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );