A train moving at 50 km/h meets another train moving in opposite direction at 40 km/h. A passenger sitting in the first train observed that the second train took exactly 8.4 seconds to pass him. How long is the second train?
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Since the trains are moving in opposite directions, the speed of crossing is 90 km/h. In 8.4 s, the distance covered (which is the length of the other train) is (90000/3600)*8.4=210 m.
Hope this helps.....
Hope this helps.....
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