document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=432312>Question 432312</A>: <I><SPAN STYLE=\"word-break: break-all;\"> h=-16t^2+64t\r<BR>\n" );
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document.write( "A. The object reaches its maximum height 2 seconds after it is propelled. What is the maximum height?\r<BR>\n" );
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document.write( "B. After how many seconds does the object hit the ground?\r<BR>\n" );
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document.write( "Please help me work this out!!\r<BR>\n" );
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document.write( "Thanks,\r<BR>\n" );
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document.write( "Chris </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #299763 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=299763\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> h=-16t^2+64t <BR>\n" );
document.write( "A. The object reaches its maximum height 2 seconds after it is propelled. What is the maximum height?<BR>\n" );
document.write( "h(2) = -16(2)^2+64(2) = -16*4 + 128 = -64+128 = +64 ft.<BR>\n" );
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document.write( "B. After how many seconds does the object hit the ground?<BR>\n" );
document.write( "Solve -16t^2+64t = 0<BR>\n" );
document.write( "-16t(t-4) = 0<BR>\n" );
document.write( "Positive solution:<BR>\n" );
document.write( "t = 4 seconds<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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