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59. Two trains each of length 100 m moving paralleltowards each other at speed 72 km/h and36 km/h respectively. In how much time will theycross each other?​

Answer»

it can't CROSS each other if they MOVING parallel if they are moving ANTIPARALLEL answer is given belowExplanation:v1= 72*1000/3600= 20 m/sV2=36*1000/3600=10m/s(USE relative motion)take 2 in rest.v12=30 m/stotal distance 200 because he has to cover his distance and also cover other train's distance because we taken that train in rest v= d/tt=total distance /velocityt=200/30t=6.67s



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