document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1198165>Question 1198165</A>: <I><SPAN STYLE=\"word-break: break-all;\"> a golfer strikes a golf ball with an initial upward velocity of 80 feet per second the function H(t)=16t^2+80t gives the height in<BR>\n" );
document.write( "feet of the golf ball after t seconds H(t)=16t^2+80t </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #831704 by </B><A HREF=/tutors/aboutme.mpl?userid=ewatrrr><B>ewatrrr(24785)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ewatrrr><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=ewatrrr><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=831704\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Re: Your Question,  flight of ball: H(t)=16t^2+80t <BR>\n" );
document.write( "At that flight it will never hit the ground<BR>\n" );
document.write( "-----<BR>\n" );
document.write( "how long does it take for the golf ball to hit the ground:<BR>\n" );
document.write( "IF flight of ball: H(t)= -16t^2+80t<BR>\n" );
document.write( "-16t^2 +80t = 0<BR>\n" );
document.write( " 16t^2 = 80t<BR>\n" );
document.write( "   t = 80/16 = 5sec<BR>\n" );
document.write( "  </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );