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A 120 m long train is moving towards wes...

A 120 m long train is moving towards west with a speed of 10 `m//s`. A bird flying towards east with a speed of 5 `m//s` crosses the train. The time taken by the bird to cross the train will be

A

16sec

B

12sec

C

10sec

D

8sec.

Text Solution

Verified by Experts

The correct Answer is:
d
The relative velocity of bird with respect to train v=10+5=15m/s
The distance covered by bird is 120m with same velocity
Time taken by bird `t=(120)/(15)=8` seconds.
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