document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1001158>Question 1001158</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 1. a train travelling along a straight line with constant acceleration is observed to travel consecutive displacements of 1km in times of 30s and 60s respectively. find the initial velocity of the train.\r<BR>\n" );
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document.write( "2.a stone is dropped from the top of the building 20m high. a second stone is dropped from half-way up the same building find the time that should elapse between the release of the two stones if they are to reach the ground at the same time<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #618486 by </B><A HREF=/tutors/aboutme.mpl?userid=ikleyn><B>ikleyn(52788)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ikleyn><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=ikleyn><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=618486\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .<BR>\n" );
document.write( "2. A stone is dropped from the top of the building 20m high. A second stone is dropped from half-way up the same building. Find the time that should elapse between the release of the two stones if they are to reach the ground at the same time.<BR>\n" );
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document.write( "The dropped stones have zero initial velocity.\r<BR>\n" );
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document.write( "So, &nbsp;h= <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28g%2At%5E2%29%2F2 ALIGN=MIDDLE  ALT=\"%28g%2At%5E2%29%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" >, &nbsp;where &nbsp;g&nbsp; is free fall acceleration &nbsp;9.81 <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=m%2Fs%5E2 ALIGN=MIDDLE  ALT=\"m%2Fs%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" >, &nbsp;t&nbsp; is time in seconds and &nbsp;h&nbsp; is the traveled distance &nbsp;(the height) &nbsp;by the falling body.\r<BR>\n" );
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document.write( "Thus we have two equations for two falling bodies:\r<BR>\n" );
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document.write( "20 = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%289.81%2At%5B1%5D%5E2%29%2F2 ALIGN=MIDDLE  ALT=\"%289.81%2At%5B1%5D%5E2%29%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" > \r<BR>\n" );
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document.write( "and\r<BR>\n" );
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document.write( "10 = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%289.81%2At%5B2%5D%5E2%29%2F2 ALIGN=MIDDLE  ALT=\"%289.81%2At%5B2%5D%5E2%29%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" >.\r<BR>\n" );
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document.write( "Find &nbsp;<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t%5B1%5D ALIGN=MIDDLE  ALT=\"t%5B1%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" > &nbsp;and &nbsp;<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t%5B2%5D ALIGN=MIDDLE  ALT=\"t%5B2%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" > &nbsp;from these equations.\r<BR>\n" );
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document.write( "Then &nbsp;<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t%5B1%5D ALIGN=MIDDLE  ALT=\"t%5B1%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" > - <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t%5B2%5D ALIGN=MIDDLE  ALT=\"t%5B2%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" > &nbsp;would be your answer.\r<BR>\n" );
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