A 120 m long train is going from East to West with velocity 10 m/s. A bird flying due East with the velocity 5 m/s crosses the train. Calculate the time taken by the bird to cross the train.
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Answer:
Length of train = 120m
Speed = 72 km/hr or 72 * (1000/3600) m/s =
20m/s
Length of stationary train = 100m
Total distance = length of both trains = 220m
Therefore, time taken to cover this length is
220/20 = 11 seconds
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