Question

a 200 m long train is moving due north at a speed of 15m/s. A small bird is flying due south little above the train with the speed of 5m/s . The time taken by the bird to cross the train

Answer 1

Answer:

the relative velocity of bird =15+5=20m/s

time =200m/20m/s=10sec

ans=10sec

Answer 2

Answer:

10 seconds.

Explanation:

Relative velocity of bird with respect to train = 15+5 = 20m/s

Time taken by the bird to cross the train =

t = distance/speed

= 200/20

= 10 seconds.

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