document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=558492>Question 558492</A>: <I><SPAN STYLE=\"word-break: break-all;\"> An automobile wheel 78 cm in diameter rotates at the rate of 600 revolutions per minute.  What is the speed of the car in km/hr? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #363071 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=363071\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> An automobile wheel 78 cm in diameter rotates at the rate of 600 revolutions per minute.  What is the speed of the car in km/hr?<BR>\n" );
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document.write( "78 cm = 0.78 meters<BR>\n" );
document.write( "Circumference = 0.78*pi m<BR>\n" );
document.write( "600C = 600*0.78pi m/min = 468pi m/min = 0.468pi km/min<BR>\n" );
document.write( "= 0.468pi*60 km/hr<BR>\n" );
document.write( "= 28.08pi km/hr<BR>\n" );
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