document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=194900>Question 194900</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Kind of a physics/math question and cannot figure out!!!!\r<BR>\n" );
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document.write( "The space shuttle performs a retro burn for 3.5 minutes to go from an orbital velocity of 17,500 mph to re-entry velocity of 5000 mph.<BR>\n" );
document.write( "1) How many miles does the maneuver require?<BR>\n" );
document.write( "2) How many g's do the astronauts experience? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #146233 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=146233\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Kind of a physics/math question and cannot figure out!!!! <BR>\n" );
document.write( "The space shuttle performs a retro burn for 3.5 minutes to go from an orbital velocity of 17,500 mph to re-entry velocity of 5000 mph.<BR>\n" );
document.write( "1) How many miles does the maneuver require?<BR>\n" );
document.write( "The average speed for the 3.5 minutes is (17500+5000)/2 = 11250 mph<BR>\n" );
document.write( "11250mph*3.5 minutes * 1hr/60 min = 656.25 miles<BR>\n" );
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document.write( "2) How many g's do the astronauts experience?<BR>\n" );
document.write( "The change in speed is 17500 - 5000 = 12500 mph<BR>\n" );
document.write( "12500 mph = 18333 ft/sec<BR>\n" );
document.write( "The change in speed took 210 seconds, so the acceleration is<BR>\n" );
document.write( "18333/210 = 87.3 ft/sec/sec<BR>\n" );
document.write( "87.3/32 = 2.73 g's<BR>\n" );
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