document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1168649>Question 1168649</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Two cranes are used to lift a heavy concrete pillar. One crane pulls straight up with a force of 7200N. The other with a force of 5300N to the left at an angle of 34 degrees to the horizontal.\r<BR>\n" );
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document.write( "a) What is the magnitude of the combined force, to the nearest tenth of a newton?\r<BR>\n" );
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document.write( "b) At what angle does the pillar move to the nearest tenth of a degree?\r<BR>\n" );
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document.write( "Help please\r<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 #793220 by </B><A HREF=/tutors/aboutme.mpl?userid=htmentor><B>htmentor(1343)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=htmentor><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=htmentor><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=793220\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> F1 = 7200 N straight up<BR>\n" );
document.write( "F2 = 5300 N at 34 deg<BR>\n" );
document.write( "To resultant force R = sqrt(Fx^2 + Fy^2), where Fx and Fy are the net forces <BR>\n" );
document.write( "in the x and y directions.<BR>\n" );
document.write( "Since one crane pulls straight up, the x force has one component:<BR>\n" );
document.write( "Fx = F2*cos(34)<BR>\n" );
document.write( "The y force has two components:<BR>\n" );
document.write( "Fy = 7200 + F2*sin(34)<BR>\n" );
document.write( "The angle the pillar moves is in the direction of the applied force:<BR>\n" );
document.write( "A = arctan(Fy/Fx) </SPAN>\n" );
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