document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=26277>Question 26277</A>: <I><SPAN STYLE=\"word-break: break-all;\"> An object drops from a cliff that is 150m high. The distance, d, in meters that the object has dropped at t seconds is modelled by d(t)=4.9t^2.<BR>\n" );
document.write( "a. Find the average rate of change of distance with respect to time from 2 s to 5 s.<BR>\n" );
document.write( "b. Find the rate at which the object hits the ground to the nearest tenth.<BR>\n" );
document.write( "THANK YOU.<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #14185 by </B><A HREF=/tutors/aboutme.mpl?userid=venugopalramana><B>venugopalramana(3286)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=venugopalramana><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.geocities.com/venugopalramana/FREE_MATHS_ASSISTANCE.html valign=middle><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=14185\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> LET ME USE SYMOL S INSTEAD OF D FOR DISTANCE<BR>\n" );
document.write( "S=4.9T^2<BR>\n" );
document.write( "RATE OF CHANGE OF DISTANCE (MORE APPROPRIATE WORD IS RATE OF CHANGE OF<BR>\n" );
document.write( "POSITION OR RATE OF DISPLACEMENT IN PHYSICS) IS VELOCITY.HOPE YOU ARE<BR>\n" );
document.write( "TAUGHT DIFFERENTIATION..<BR>\n" );
document.write( "V=DS/DT=4.9*2*T=9.8T<BR>\n" );
document.write( "AT T= 2 SEC.,V=9.8*2=19.6 M/SEC.<BR>\n" );
document.write( "AT T=5 SEC....V=4.9*5=24.5 M/SEC.<BR>\n" );
document.write( "AVERAGE VELOCITY DURING THIS PERIOD=(19.6+24.5)/2=22.05 M/SEC.<BR>\n" );
document.write( "S=4.9T^2=150 FOR THE OBJECT TO HIT THE GROUND<BR>\n" );
document.write( "T=5.53 SEC<BR>\n" );
document.write( "AT T= 5.53 SEC. V= 4.9*5.53=27.11 M/SEC.<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );