Question

A 180 metre long train is moving due north at a speed of 25 m/s. A small bird is flying due south, a little above the train, with a speed of 5 m/s. The time taken by the bird to cross the train is

Answer 1

Answer:

Time taken by bird to cross the train = 6 seconds

Explanation:

#A small bird is moving due south just above a train.

#A train of length, s = 180 m is moving due north.

#velocity at which small bird is moving, v = 5 m/s

#velocity at which train is moving, u = -25 m/s

Answer 2

Answer:

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