document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=608446>Question 608446</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Malik popped a ball staight up with an initial upward velocity of 45 feet per second. the height h, in feet, of the ball above the ground is modeled by the equation h = 2 + 45t - 16t^2. How long was the ball in the air if the catcher catches the ball when it is 2 feet above the ground? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #383196 by </B><A HREF=/tutors/aboutme.mpl?userid=nerdybill><B>nerdybill(7384)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=nerdybill><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=nerdybill><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=383196\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Given:<BR>\n" );
document.write( "h = 2 + 45t - 16t^2<BR>\n" );
document.write( "set h to 2 and solve for t:<BR>\n" );
document.write( "2 = 2 + 45t - 16t^2<BR>\n" );
document.write( "0 = 45t - 16t^2<BR>\n" );
document.write( "0 = t(45 - 16t)<BR>\n" );
document.write( ".<BR>\n" );
document.write( "t = {0,45/16}<BR>\n" );
document.write( "t = {0,2.81}<BR>\n" );
document.write( "answer: 2.8 seconds<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );