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9. How much time will a 120 m long train, travelling ata speed of 108 km/h take to go past a signal by theside of the railway track?

Answer»

Length of train = 120 mSpeed of train = 108 km/hr= 108*5/18 = 30 m/sec

Then, Time required to go past a signal = Distance /speed= 120/30 = 4 sec



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