document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=39699>Question 39699</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A corporate jet has a speed of 600 miles per hour in still air. The jet travels directly north and encouters a 70 mile per hour wind blowing due east. Find the resulting speed of the plane. Round your answer to the nearest mile per hour. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #25126 by </B><A HREF=/tutors/aboutme.mpl?userid=Paul><B>Paul(988)</B></A><img src=\"/images/stars/stars-11.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Paul><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=25126\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> SPEED OF THE JET -->600mph. north (v)<BR>\n" );
document.write( "Speed of the wind --->70mph. east (w)<BR>\n" );
document.write( "Resulting speed ---> ||v||+||w||<BR>\n" );
document.write( "Makes a 90 degree angle for wind and the jet hence resulting in a 45 degree angle.<BR>\n" );
document.write( "EQUATION:<BR>\n" );
document.write( "From cosine law:<BR>\n" );
document.write( "||v||+||w||²=<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=600%5E2%2B70%5E2-2%2870%29%28600%29cos45 ALIGN=MIDDLE  ALT=\"600%5E2%2B70%5E2-2%2870%29%28600%29cos45\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "||v||+||w||=553 (rounded)<BR>\n" );
document.write( "Hence, the resulting speed is 553 mph.<BR>\n" );
document.write( "Paul. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );