11 - Modern Physics Questions Answers
two trains each 100m long ,oving in opposite directions ,cross each other in 8sec .if one is moving twice as fast than other ,then the speed of the faster train is?
Asked By: YOMOL RAJU
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Joshi sir comment
Crossing means to cover the length of both the trains
so according to the given conditions 2v+v = (100+100)/8
or 3v = 25 or v = 25/3
so speed of faster train = 50/3 m/s