document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=732463>Question 732463</A>: <I><SPAN STYLE=\"word-break: break-all;\"> a boat has a speed of 9.0 km/hr, in still water and is traveling down a river with a current of 2.0 m/s. What will be its \"riverbank\" velocity going down and then upstream? At what angle would this boat have to travel across the river in order to move straight across? Thank you :D </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #447855 by </B><A HREF=/tutors/aboutme.mpl?userid=josmiceli><B>josmiceli(19441)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josmiceli><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=josmiceli><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=447855\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Going upstream, the speed along the riverbank<BR>\n" );
document.write( "is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+9+-+2+=+7+ ALIGN=MIDDLE  ALT=\"+9+-+2+=+7+\"   DISABLED_style= \"max-width:90%; height:auto;\" > m/s<BR>\n" );
document.write( "Going downstream, the speed along the riverbank <BR>\n" );
document.write( "is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+9+%2B+2+=+11+ ALIGN=MIDDLE  ALT=\"+9+%2B+2+=+11+\"   DISABLED_style= \"max-width:90%; height:auto;\" > m/s<BR>\n" );
document.write( "The boat should travel at angle <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+a+ ALIGN=MIDDLE  ALT=\"+a+\"   DISABLED_style= \"max-width:90%; height:auto;\" >,<BR>\n" );
document.write( "( heading against the current )<BR>\n" );
document.write( "so that <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+sin%28a%29+=+2%2F9+ ALIGN=MIDDLE  ALT=\"+sin%28a%29+=+2%2F9+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "This is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+9+ ALIGN=MIDDLE  ALT=\"+9+\"   DISABLED_style= \"max-width:90%; height:auto;\" > m/s at angle <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+a+ ALIGN=MIDDLE  ALT=\"+a+\"   DISABLED_style= \"max-width:90%; height:auto;\" >, and<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+2+ ALIGN=MIDDLE  ALT=\"+2+\"   DISABLED_style= \"max-width:90%; height:auto;\" > m/s will bring the boat straight across.<BR>\n" );
document.write( "You can find <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+a+ ALIGN=MIDDLE  ALT=\"+a+\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
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