document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=337636>Question 337636</A>: <I><SPAN STYLE=\"word-break: break-all;\"> .A punter can kick a football with an initial velocity of 48 feet per second.  How many seconds will it take for the ball to return to the ground?  (Hint: use the formula h= vt – 16t2.) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #242069 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=242069\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A punter can kick a football with an initial velocity of 48 feet per second. How many seconds will it take for the ball to return to the ground? (Hint: use the formula h= vt – 16t2.)<BR>\n" );
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document.write( "Height(t) = -16t^2+48t<BR>\n" );
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document.write( "When the ball is on the ground, height is zero.<BR>\n" );
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document.write( "Solve -16t^2+48t = 0<BR>\n" );
document.write( "-16t(t-3) = 0<BR>\n" );
document.write( "Positive solution:<BR>\n" );
document.write( "t = 3 seconds<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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