document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=233309>Question 233309</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Can you assist me in solving this word problem?\r<BR>\n" );
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document.write( "An object's altitude in meters is given by the polynomial h + vt - 9.8t^2, where h is the height in meters from which the rocket is airborne.  A pebble is shot upward from the top of a building 200 meters tall.  If the initial speed is 30 meters per second, how high above the ground will the pebble be after 4 seconds? (Round results to the nearest tenth of a meter)  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #172211 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=172211\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> An object's altitude in meters is given by the polynomial h + vt - 9.8t^2, where h is the height in meters from which the rocket is airborne. A pebble is shot upward from the top of a building 200 meters tall. If the initial speed is 30 meters per second, how high above the ground will the pebble be after 4 seconds? <BR>\n" );
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document.write( "h(t) = 200 + 30t - 9.8t^2<BR>\n" );
document.write( "h(4) = 200 + 120 - 9.8*16<BR>\n" );
document.write( "h(4) = 163.2 meters<BR>\n" );
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document.write( "9.8 meters/sec/sec is the acceleration due to gravity<BR>\n" );
document.write( "The term in the equation should be 1/2 that, or 4.9 m/sec/sec since<BR>\n" );
document.write( "s = (at^2)/2, but that's the value given.  Maybe this takes place on a different planet. </SPAN>\n" );
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