document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=159583>Question 159583</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Applications A golfer's tee shot follows a path given by y = 64t - 16t2, where y is the height of the ball (in feet) after t seconds of flight. How long will it take for the ball to strike the ground? <BR>\n" );
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document.write( "I do not understand how to do this can you show me the steps to solve </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #117679 by </B><A HREF=/tutors/aboutme.mpl?userid=KnightOwlTutor><B>KnightOwlTutor(293)</B></A><img src=\"/images/stars/stars-09.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=KnightOwlTutor><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=KnightOwlTutor><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=117679\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> This is a type of quadratic equation commonly used in physics.\r<BR>\n" );
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document.write( "In other words it is the shape of a parabola. It reaches a max and comes back down to the point of origin.When the ball hits the ground x=0 there is no distance traveled<BR>\n" );
document.write( "therefore the equation becomes 0=64t-16t2\r<BR>\n" );
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document.write( "factor the equation 0=4t(16-t)\r<BR>\n" );
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document.write( "the only times where this equation is 0 is when t=0 and when t=16\r<BR>\n" );
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document.write( "therefore it takes 16 seconds for the ball to reach the ground.\r<BR>\n" );
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document.write( "ground distance=0.\r<BR>\n" );
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