document.write( "Question 936955: A one-half mile long train is moving at 45 mph when it passes a car traveling in the opposite direction at 60 mph. To the nearest second, how many seconds until the last car of the train is past the car? \n" ); document.write( "

Algebra.Com's Answer #570497 by ankor@dixie-net.com(22740) $\"\"$ $\"About$

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A one-half mile long train is moving at 45 mph when it passes a car traveling in the opposite direction at 60 mph.
\n" ); document.write( " To the nearest second, how many seconds until the last car of the train is past the car?
\n" ); document.write( ":
\n" ); document.write( "The relative speed of the train and the car: 45+60 = 105 mph
\n" ); document.write( "How long to travel 1/2 mile at this speed
\n" ); document.write( " $\".5%2F105\"$ * 3600 = 17.143 seconds \n" ); document.write( "

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