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Two trains each of length 50 m are approaching each other on parallel rails. Their velocities are 10 m/sec and 15 m/sec. They will cross each other in - A: 2 Sec B: 4 Sec C: 10 Sec D: 6 Sec The?
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Two trains each of length 50 m are approaching each other on parallel ...
The velocity of 2nd train relative to first train is 15-(-10)=25m/s, when we say relative to first train then first train has to be considered stationary. With this picture second train has to travel 100 m with relative velocity of 25m/s. So, it will take 100/25=4s.
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Two trains each of length 50 m are approaching each other on parallel ...
10sec
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Two trains each of length 50 m are approaching each other on parallel rails. Their velocities are 10 m/sec and 15 m/sec. They will cross each other in - A: 2 Sec B: 4 Sec C: 10 Sec D: 6 Sec The?
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