document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=810870>Question 810870</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hi again. I'm sorry to bother you guys again but I have one more question. Here it is: \r<BR>\n" );
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document.write( "A ball is thrown up at 50 m/s at an angle of 37 degrees. How far has the ball traveled (horizontally) when the ball is 25 meters above the ground?\r<BR>\n" );
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document.write( "My AP Physics teacher gave me the answer for this problem, which can be either 39.9 meters OR 205 meters, but she wants me to show how I would get to either of those answers by showing my work. I think the equations I'm using for the problem like v= vi + at to get the time and v = x/t to get the distance are right but the fact that the ball is 25 meters above the ground might be the reason why I can't get either 39.9 m or 205 m. I don't know where 25 meters would fit into any of the equations. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #488521 by </B><A HREF=/tutors/aboutme.mpl?userid=mananth><B>mananth(16946)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mananth><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=mananth><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=488521\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> angle of projection = 37 deg\r<BR>\n" );
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document.write( "calculate the time taken to reach a height of 25 m<BR>\n" );
document.write( "The vertical component is v sin <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=Theta ALIGN=MIDDLE  ALT=\"Theta\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "y=25=ut+1/2 (-g)t^2 where t is the time in seconds\r<BR>\n" );
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document.write( "25=30t-1/2*9.8t^2\r<BR>\n" );
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document.write( "4.9t^2-30t+25=0\r<BR>\n" );
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document.write( "t= 5.13 & 1\r<BR>\n" );
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document.write( "in the horizontal direction d=rt\r<BR>\n" );
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document.write( "d=v cos<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=Theta ALIGN=MIDDLE  ALT=\"Theta\"   DISABLED_style= \"max-width:90%; height:auto;\" >*t<BR>\n" );
document.write( "=v cos 37 *1<BR>\n" );
document.write( "=39.9 meters<BR>\n" );
document.write( "OR<BR>\n" );
document.write( "d=vcos 37 * 5.13<BR>\n" );
document.write( "=204.85 meters<BR>\n" );
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