document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=491698>Question 491698</A>: <I><SPAN STYLE=\"word-break: break-all;\"> If the equation describing the motion of a rocket is x=10+5t^2, find its average speed during the first 5.0 seconds of flight.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #334739 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=334739\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> If the equation describing the motion of a rocket is h(t)=10+5t^2, find its average speed during the first 5.0 seconds <BR>\n" );
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document.write( "Average speed = total distance/total time<BR>\n" );
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document.write( "Height at t= 0 is 10 ft<BR>\n" );
document.write( "Height at t= 5 = 10+5*25 = 135 ft<BR>\n" );
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document.write( "Average speed = (135-10)/(5-0) = 125/5 = 25 ft. per second<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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