document.write( "Question 763606: A train moving at 49 mph meets and is passed by a train moving at 63 mph. A passenger in the first train noted that the second train took 4.5 seconds to pass him. How long is the second train? \n" ); document.write( "
Algebra.Com's Answer #464990 by ankor@dixie-net.com(22740)\"\" \"About 
You can put this solution on YOUR website!
A train moving at 49 mph meets and is passed by a train moving
\n" ); document.write( " at 63 mph.
\n" ); document.write( "A passenger in the first train noted that the second train took
\n" ); document.write( " 4.5 seconds to pass him.
\n" ); document.write( "How long is the second train?
\n" ); document.write( ":
\n" ); document.write( "The effective speed between the trains: 49 + 63 = 112 mph
\n" ); document.write( "Assume the passenger is stationary and the 2nd train is passing him
\n" ); document.write( "at 112 mph
\n" ); document.write( ":
\n" ); document.write( "Find the speed in ft/sec, mult by 4.5 sec
\n" ); document.write( "\"%28112%2A5280%29%2F3600\" * 4.5 = 739.5 ft is the length of the train
\n" ); document.write( "
\n" );