document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=366395>Question 366395</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A woman driving a car 14 ft long is passing a truck 30 ft long. The truck is traveling at 50 mi/h. How fast must the woman drive her car so that she can pass the truck completely in 6 s, from the position shown in figure (a) to the position shown in figure (b)? [Hint: Use feet and seconds instead of miles and hours.]<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 #261103 by </B><A HREF=/tutors/aboutme.mpl?userid=mananth><B>mananth(16946)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mananth><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=mananth><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=261103\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A woman driving a car 14 ft long is passing a truck 30 ft long. The truck is traveling at 50 mi/h. How fast must the woman drive her car so that she can pass the truck completely in 6 s, from the position shown in figure (a) to the position shown in figure (b)? [Hint: Use feet and seconds instead of miles and hours.]<BR>\n" );
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document.write( "length of truck = 30 ft.<BR>\n" );
document.write( "length of car = 14 ft.<BR>\n" );
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document.write( "to completely pass the truck the car has to travel a distance of 30+14 = 44 feet.<BR>\n" );
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document.write( "speed of truck = 50 mph <BR>\n" );
document.write( "1 mph = 1.46 ft/s<BR>\n" );
document.write( "50mph = 73.33 ft/s<BR>\n" );
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document.write( "let car travel at x ft/s<BR>\n" );
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document.write( "they are going in the same direction<BR>\n" );
document.write( "effective speed = x-73.33 ft/s<BR>\n" );
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document.write( "distance = 44ft<BR>\n" );
document.write( "speed = x-73.33<BR>\n" );
document.write( "time = 6 seconds<BR>\n" );
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document.write( "44/(x-73.33)= 6<BR>\n" );
document.write( "44= 6(x-73.33)<BR>\n" );
document.write( "44=6x-439.98<BR>\n" );
document.write( "6x=439.98+44<BR>\n" );
document.write( "6x= 483.98<BR>\n" );
document.write( "/6<BR>\n" );
document.write( "x= 483.98/6<BR>\n" );
document.write( "x= 80.66 ft/s the speed of the car<BR>\n" );
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document.write( "m.ananth@hotmail.ca </SPAN>\n" );
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