document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=472381>Question 472381</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A car traveling at 45 mph. The tires are 30 in in diameter. What is the angular velocity of the tire? \r<BR>\n" );
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document.write( "i got v=rw <BR>\n" );
document.write( "r= 15in(1ft/12in)(1mi/5280ft) so r= 2.37E-4\r<BR>\n" );
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document.write( "V= 45mph \r<BR>\n" );
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document.write( "w= v/r \r<BR>\n" );
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document.write( "45mi/2.37E-4(mi)(hr)\r<BR>\n" );
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document.write( "which leaves 189873.418/hr(hr/3600sec) <BR>\n" );
document.write( "so w= 52.743/sec \r<BR>\n" );
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document.write( "i dont know how to show work to get rad/sec can i just times it by 1 rad? or was the 45/2.37E-4 the rad? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #323874 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=323874\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A car traveling at 45 mph. The tires are 30 in in diameter. What is the angular velocity of the tire?<BR>\n" );
document.write( "Use feet, not miles.<BR>\n" );
document.write( "45 mph = 66 ft/sec<BR>\n" );
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document.write( "One rev of the tire is 30*pi inches = 2.5pi feet<BR>\n" );
document.write( "66 ft/sec / 2.5pi ft/rev = 26.4/pi rev/sec<BR>\n" );
document.write( "1 rev = 2pi radians<BR>\n" );
document.write( "26.4/pi * 2pi = 52.8 radians/sec<BR>\n" );
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document.write( "52.743 is the right answer, just with roundoff errors<BR>\n" );
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document.write( "i got v=rw <BR>\n" );
document.write( "r= 15in(1ft/12in)(1mi/5280ft) so r= 2.37E-4\r<BR>\n" );
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document.write( "V= 45mph \r<BR>\n" );
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document.write( "w= v/r \r<BR>\n" );
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document.write( "45mi/2.37E-4(mi)(hr)\r<BR>\n" );
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document.write( "which leaves 189873.418/hr(hr/3600sec) <BR>\n" );
document.write( "so w= 52.743/sec \r<BR>\n" );
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document.write( "i dont know how to show work to get rad/sec can i just times it by 1 rad? or was the 45/2.37E-4 the rad? </SPAN>\n" );
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