document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=357043>Question 357043</A>: <I><SPAN STYLE=\"word-break: break-all;\"> please help me answer this question:<BR>\n" );
document.write( "a flare is launched from a life raft with an initial velocity of 80 meters per second. how many seconds will it take for the flare to return the sea? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #254969 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=254969\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> a flare is launched from a life raft with an initial velocity of 80 meters per second. how many seconds will it take for the flare to return the sea?<BR>\n" );
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document.write( "h(t) = -9.8t^2 + 80t<BR>\n" );
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document.write( "When the flare is at sea level, it height is zero.<BR>\n" );
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document.write( "Solve -9.8t^2+80t = 0<BR>\n" );
document.write( "t(-9.8t+80) = 0<BR>\n" );
document.write( "t= 0 when the flare leaves the raft.<BR>\n" );
document.write( "-9.8t+80 = 0 when the flare hits the water.<BR>\n" );
document.write( "9.8t = 80<BR>\n" );
document.write( "t = 8.16 seconds<BR>\n" );
document.write( "==========================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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