document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1146204>Question 1146204</A>: <I><SPAN STYLE=\"word-break: break-all;\"> If a rock is thrown into the air on small planet with a velocity of 25 m/s, its height (in meters) after t seconds is given by y=25t−4.9t^2.<BR>\n" );
document.write( "Find the velocity in meters per second of the rock when t=2.5. (Include units.) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #767507 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=767507\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> If a rock is thrown into the air on small planet with a velocity of 25 m/s, its height (in meters) after t seconds is given by y=25t−4.9t^2.<BR>\n" );
document.write( "Find the velocity in meters per second of the rock when t=2.5. (Include units.)<BR>\n" );
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document.write( "y=25t−4.9t^2<BR>\n" );
document.write( "y' = 25 - 9.8t<BR>\n" );
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document.write( "y', the 1st derivative of displacement, is the velocity.<BR>\n" );
document.write( "Sub 2.5 for t.<BR>\n" );
document.write( "---> m/s </SPAN>\n" );
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