document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=612304>Question 612304</A>: <I><SPAN STYLE=\"word-break: break-all;\"> a ball thrown from the height of 3m with the speed of 4m/s. find quadretic equation.i got answer -9.8t^2+4t+3but i donot understand how -9.8 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #385419 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=385419\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The \"acceleration of gravity\" is<BR>\n" );
document.write( "9.8 meters/sec^2<BR>\n" );
document.write( "since, the force is downward it will be negative.<BR>\n" );
document.write( ".<BR>\n" );
document.write( "The general form of the equation of motion is:<BR>\n" );
document.write( "(1/2)gt^2 + vt + h<BR>\n" );
document.write( "where<BR>\n" );
document.write( "g is gravity (m/sec^2)<BR>\n" );
document.write( "t is time (sec)<BR>\n" );
document.write( "v is initial velocity<BR>\n" );
document.write( "h is initial height<BR>\n" );
document.write( ".<BR>\n" );
document.write( "your equation should be:<BR>\n" );
document.write( "-(1/2)gt^2 + vt + h<BR>\n" );
document.write( "-(1/2)9.8t^2+4t+3<BR>\n" );
document.write( "-4.9t^2+4t+3<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );