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A train travelling at 20 km hr is approaching a platform A bird is sitting...

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A train travelling at 20 km hr is approaching a platform A bird is sitting on a pole on the platform When the train is at a distance of 2 km from pole brakes are applied which produce a uniform deceleration in it At that instant the bird flies towards the train at 60 km hr and after touching the nearest point on the train flies back to the pole and then flies towards the train and continues repeating itself Calculate how much distance the bird covers before the train stops olution For retardation of train v u 2as 0 20 2 a 2 a 100 km hr 1 Time required to stop the train v u at 0 20 100t t hr For Bird speed Distance 1 S V x t 60 x 12 km

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