document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=275681>Question 275681</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Wind is coming in at 80 km/h from the east and a plane is capable of travelling 200 km/h.  What is the relative velocity to the ground if the plane is travelling North? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #201337 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=201337\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Wind is coming in at 80 km/h from the east and a plane is capable of travelling 200 km/h. What is the relative velocity to the ground if the plane is travelling North?<BR>\n" );
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document.write( "I'll assume the plane is heading north. If its ground track is north, it's a different problem.<BR>\n" );
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document.write( "The groundspeed is the hypotenuse<BR>\n" );
document.write( "r = sqrt(200^2 + 80^2) = sqrt(46400)<BR>\n" );
document.write( "r =~ 215.4 km/hr<BR>\n" );
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