document.write( "Question 274958: Avoiding a collision. A car is traveling on a road that
\n" ); document.write( "is perpendicular to a railroad track. When the car is
\n" ); document.write( "30 meters from the crossing, the car’s new collision
\n" ); document.write( "detector warns the driver that there is a train 50 meters
\n" ); document.write( "from the car and heading toward the same crossing. How
\n" ); document.write( "far is the train from the crossing? \n" ); document.write( "
Algebra.Com's Answer #200662 by ankor@dixie-net.com(22740)\"\" \"About 
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A car is traveling on a road that is perpendicular to a railroad track.
\n" ); document.write( " When the car is 30 meters from the crossing, the car’s new collision
\n" ); document.write( "detector warns the driver that there is a train 50 meters from the car and heading toward the same crossing.
\n" ); document.write( " How far is the train from the crossing?
\n" ); document.write( ":
\n" ); document.write( "This is a pythag problem a^2 + b^2 = c^2
\n" ); document.write( "where
\n" ); document.write( "a = 30
\n" ); document.write( "c = 50
\n" ); document.write( "b = dist train is from the crossing
\n" ); document.write( ":
\n" ); document.write( "30^2 + b^2 = 50^2
\n" ); document.write( "b^2 = 50^2 - 30^2
\n" ); document.write( "b^2 = 2500 - 900
\n" ); document.write( "b = \"sqrt%281600%29\"
\n" ); document.write( "b = 40 meters from the crossing \n" ); document.write( "
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