document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=971713>Question 971713</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A ball is thrown from 4 feet off the ground with a vertical velocity of 30 feet per second.\r<BR>\n" );
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document.write( "Is the ball at its maximum height after 1 second? In two or more complete sentences, explain how you know whether or not the ball is at its maximum height. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #594101 by </B><A HREF=/tutors/aboutme.mpl?userid=anand429><B>anand429(138)</B></A><img src=\"/images/stars/stars-09.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=anand429><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=anand429><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=594101\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Using the equation of motion,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=v=u-g%2At ALIGN=MIDDLE  ALT=\"v=u-g%2At\"   DISABLED_style= \"max-width:90%; height:auto;\" >  (where symbols have usual meanings)<BR>\n" );
document.write( "From above equation, we get,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=0=30-32%2At ALIGN=MIDDLE  ALT=\"0=30-32%2At\"   DISABLED_style= \"max-width:90%; height:auto;\" > (At max height, velocity =0 and taking g= 32feet/second^2 approx.)<BR>\n" );
document.write( "=> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t=+30%2F32 ALIGN=MIDDLE  ALT=\"t=+30%2F32\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "So, it will take 30/32 seconds(i.e less than 1 second to reach maximum height, and then ball starts descending. So, after 1 sec, ball is below its maximum height and  in downward motion.<BR>\n" );
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