document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=212738>Question 212738</A>: <I><SPAN STYLE=\"word-break: break-all;\"> An arrow is shot up with a velocity of 50m/s and the height in meters after t seconds is h=50t-0.36t^2. Find the average velocity over interval [1,1.03]. correct to sour decimal places. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #160977 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=160977\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> An arrow is shot up with a velocity of 50m/s and the height in meters after t seconds is h=50t-0.36t^2. Find the average velocity over interval [1,1.03]. correct to sour decimal places.<BR>\n" );
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document.write( "Find the height at 1 second and at 1.03 seconds<BR>\n" );
document.write( "h(1) = 50 - 0.36 = 49.64 meters<BR>\n" );
document.write( "h(1.03) = 51.5 - 0.381924 = 51.118076 meters<BR>\n" );
document.write( "Change in height = 1.478076<BR>\n" );
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document.write( "The average speed over the time interval = d/t<BR>\n" );
document.write( "= 1.478076/0.03<BR>\n" );
document.write( "= 49.2692 m/sec<BR>\n" );
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document.write( "I don't know where that formula came from.  The 0.36 is a lot less than Earth's gravity. </SPAN>\n" );
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