document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1020135>Question 1020135</A>: <I><SPAN STYLE=\"word-break: break-all;\"> If a Cessna 172 requires 20 seconds to reach its liftoff speed of 120 km/h, what is its average acceleration?  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #636173 by </B><A HREF=/tutors/aboutme.mpl?userid=Fombitz><B>Fombitz(32388)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Fombitz><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=Fombitz><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=636173\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a=%28v%5Bf%5D-v%5B0%5D%29%2Ft ALIGN=MIDDLE  ALT=\"a=%28v%5Bf%5D-v%5B0%5D%29%2Ft\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "We need to use consistent units so either convert seconds to hours or kph to kps.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=20+s%2A%28%281+hr%29%2F%283600+s%29%29=%281%2F180%29hr ALIGN=MIDDLE  ALT=\"20+s%2A%28%281+hr%29%2F%283600+s%29%29=%281%2F180%29hr\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "So then,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a=%28120-0%29%2F%281%2F180%29=21600 ALIGN=MIDDLE  ALT=\"a=%28120-0%29%2F%281%2F180%29=21600\"   DISABLED_style= \"max-width:90%; height:auto;\" ><IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=km%2Fhr%5E2 ALIGN=MIDDLE  ALT=\"km%2Fhr%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );