document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1164953>Question 1164953</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A projectile is launched from ground level with an initial velocity of V0 feet per second. Neglecting air​ resistance, its height in feet t seconds after launch is given by s= -16t^2 + V0t . Find the​ time(s) that the projectile will​ (a) reach a height of 96 ft and​ (b) return to the ground when V0= 112 feet per second.<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #789380 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=789380\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A projectile is launched from ground level with an initial velocity of V0 feet per second. Neglecting air​ resistance, its height in feet t seconds after launch is given by s= -16t^2 + V0t . <BR>\n" );
document.write( "-----<BR>\n" );
document.write( "Find the​ time(s) that the projectile will​ (a) reach a height of 96 ft<BR>\n" );
document.write( "s = h(t) = -16t^2 + 112t<BR>\n" );
document.write( "-16t^2 + 112t = 96<BR>\n" );
document.write( "Solve for t<BR>\n" );
document.write( "2 times, ascending and descending.<BR>\n" );
document.write( "----------<BR>\n" );
document.write( " and​ (b) return to the ground when V0= 112 feet per second.<BR>\n" );
document.write( "------------------<BR>\n" );
document.write( "-16t^2 + 112t = 0<BR>\n" );
document.write( "Solve for t.<BR>\n" );
document.write( "PS  t = 0 at launch </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );