document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1166213>Question 1166213</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A European Swallow flies into the wind from the castle of Uther Penn Dragon to Camelot while carrying a coconut.  He flies 28 miles to Camelot in 2 hours, delivers the coconut and retrieves an identical coconut to carry back to the castle.  He travels back the same distance (now with a tail wind) in 1.5 hours.  What is the air speed of the laden swallow?  What is the velocity of the wind?\r<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 #790736 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=790736\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A European Swallow flies into the wind from the castle of Uther Penn Dragon to Camelot while carrying a coconut.  He flies 28 miles to Camelot in 2 hours, delivers the coconut and retrieves an identical coconut to carry back to the castle.  He travels back the same distance (now with a tail wind) in 1.5 hours.  What is the air speed of the laden swallow?  What is the velocity of the wind?<BR>\n" );
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document.write( "The groundspeed upwind is 28/2 = 14 mi/hr<BR>\n" );
document.write( "The groundspeed downwind is 28/1.5 = 56/3 mi/hr<BR>\n" );
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document.write( "The airspeed is the average of the 2 speeds, = 98/3 mi/hr<BR>\n" );
document.write( "The windspeed is the difference between airspeed and either groundspeed.<BR>\n" );
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document.write( "PS  If the coconuts are identical, what's the point of the trip? </SPAN>\n" );
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