Sikta RoyKnowledge Contributor
A train 120 meters long is running with a speed of 60 km/hr. In what time will it pass a boy who is running at 6 km/hr in the direction opposite to that in which the train is going?
A train 120 meters long is running with a speed of 60 km/hr. In what time will it pass a boy who is running at 6 km/hr in the direction opposite to that in which the train is going?
Speed of train relative to boy= (60 + 6) km/hr = 66 km/h r= [66 xx 5/18] m/sec = [55/3] m/sec.
Time taken to pass the boy= [120 xx 3/55] sec = 6.54 seconds