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A train 150 m in length is going northwards at a speed of 10 m/s. A parrot flies at a speed of 5 m/s southwards, parallel to the railway track. What is the time taken by the parrot to cross the train?
use concept of relative velocityrelative velocity = 5 – (-10) = 15m/srelative displacement = 150then time t = 150/15 = 10 secHope it clears.
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