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?
0.14 miles. Assuming the trains move in opposite directions (hence meet) the combined speed is 112 mph = 0.0311 miles per seconds. In 4.5 seconds the trains moved 4.5 * 0.0311 = 0.14 miles.
A 500 yard long train, travelling at 90 mph, enters a tunnel of four and a half miles in length.
How long will elapse between the moment the front of the train enters the tunnel and the moment the end of the train clears the tunnel?
A 110 yard long Christmas train travels at 30 mph, through a tunnel, into Santa’s grotto. If the length of the tunnel is half a mile, how long will elapse between the moment the front of the train enters the tunnel and the moment the end of the train clears the tunnel?
A 400 yard long train, travelling at 30 mph, enters a one mile long tunnel.
How many seconds will elapse between the moment the front of the train enters the tunnel and the moment the end of the train clears the tunnel?
A train travelling at a speed of 76 mph enters a tunnel 9/2 miles long. The train is 1/4 mile long. How long does it take for the train to pass through the tunnel from the moment the front enters to the moment the rear emerges?
