document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=145009>Question 145009</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Solve:\r<BR>\n" );
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document.write( "The force needed to keep a car from skidding on a curve varies jointly as the weight of the car and the square of the car's speed, and inversely as the radius of the curve. If a force of 3600 pounds is needed to keep an 1800 pound car traveling at 20mph from skidding on a curve of radius 600 feet what force would be required to keep the same car from skidding on a curve of radius 570 feet at 50mph? round to the nearest pound of force.\r<BR>\n" );
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document.write( "Please help...I do not know where to begin with this one! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #105714 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=105714\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The force needed to keep a car from skidding on a curve varies jointly as the weight of the car and the square of the car's speed, and inversely as the radius of the curve. <BR>\n" );
document.write( "F = k[ws^2/r]<BR>\n" );
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document.write( "If a force of 3600 pounds is needed to keep an 1800 pound car traveling at 20 mph from skidding on a curve of radius 600 feet<BR>\n" );
document.write( "3600 = k[1800*20^2/600]<BR>\n" );
document.write( "k = 3<BR>\n" );
document.write( "Equation:<BR>\n" );
document.write( "F = 3[ws^2/r]<BR>\n" );
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document.write( "What force would be required to keep the same car from skidding on a curve of radius 570 feet at 50 mph? Round to the nearest pound of force?<BR>\n" );
document.write( "F = 3[1800*50^2/570]<BR>\n" );
document.write( "F = 23684<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. \r<BR>\n" );
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