document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1151156>Question 1151156</A>: <I><SPAN STYLE=\"word-break: break-all;\"> When an object Is released and falls freely,  it's height, h  metres,  above the ground after t seconds is represented by the relation h=  - 0.5 t^2 g + d ,Where G is the acceleration  due to gravity and D is the initial height of the object before it's released. since the string of gravity varies from planet to planet the values of G is specific to each planet\r<BR>\n" );
document.write( "\n" );
document.write( " suppose a rock is dropped from a height of 100 m on Mars and also on Venus. on Mars G= 3.7m/s  and Venus, g= 8.9m/s.  how long does it take the rock to fall to a height of 25 M on each planet show all your work. \r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\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 #772794 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=772794\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> suppose a rock is dropped from a height of 100 m on Mars and also on Venus. on Mars G= 3.7m/s and Venus, g= 8.9m/s. how long does it take the rock to fall to a height of 25 M on each planet show all your work. <BR>\n" );
document.write( "================<BR>\n" );
document.write( "h(t) = -gt^2/2 + d<BR>\n" );
document.write( "d = 100<BR>\n" );
document.write( "Mars g = 3.7m/sec^2<BR>\n" );
document.write( "-----<BR>\n" );
document.write( "h(t) = -3.7t^2/2 + 100 = 25<BR>\n" );
document.write( "3.7t^2 = 150<BR>\n" );
document.write( "Solve for t, ignore the negative value<BR>\n" );
document.write( "========<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );