document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=800978>Question 800978</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A car travels at 20 km/h for the first 2 km of its trip, then travels at 40 km/h for the last 2 km of its trip. What is the average velocity of the car for the entire trip? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #483400 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=483400\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">  A car travels at 20 km/h for the first 2 km of its trip, then travels at 40 km/h for the last 2 km of its trip. What is the average velocity of the car for the entire trip?<BR>\n" );
document.write( "-------<BR>\n" );
document.write( "1st leg DATA: time = 2km/20km/h = 1/10 hour<BR>\n" );
document.write( "--------------<BR>\n" );
document.write( "2nd leg DATA: time = 2km/40km/h = 1/20 hour<BR>\n" );
document.write( "-----------------<BR>\n" );
document.write( "Average speed = (total distance)/(total time)<BR>\n" );
document.write( "---<BR>\n" );
document.write( "= 4 km/(1/10 + 1/20)<BR>\n" );
document.write( "----<BR>\n" );
document.write( "= 4/(3/20)<BR>\n" );
document.write( "---<BR>\n" );
document.write( "= 80/3<BR>\n" );
document.write( "----<BR>\n" );
document.write( "= 26 2/3 km/hr<BR>\n" );
document.write( "===============<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "=============== </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );