document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1111938>Question 1111938</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How far from the base of a vertical cliff 0.8 meters high does a car land if it drove off horizontally at 61 kph? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #726969 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=726969\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> How far from the base of a vertical cliff 0.8 meters high does a car land if it drove off horizontally at 61 kph?<BR>\n" );
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document.write( "Find the time to impact:<BR>\n" );
document.write( "h(t) = -4.9t^2 --- t in seconds<BR>\n" );
document.write( "-0.8 = -4.9t^2<BR>\n" );
document.write( "t^2 = 8/49<BR>\n" );
document.write( "t = 2sqrt(2)/7 seconds<BR>\n" );
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document.write( "61 km/hr = 61000/3600 m/sec<BR>\n" );
document.write( "Horizontal distance = (305/18)*2sqrt(2)/7 meters<BR>\n" );
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document.write( "That's some cliff.<BR>\n" );
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