A train of $150 m$ in length is going towards the north direction at a speed of $10 m / s .$ A parrot flying at the speed of $5 m / s$ towards the south direction parallel to the railway track. The time taken by the parrot to cross the train is equal to

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Solution

A train of $150 m$ in length is going towards the north direction at a speed of $10 m / s .$
A parrot is flying at the speed of $5 m / s$ towards the south direction parallel to the railway track.
Time taken to cross the train $= \frac{L e n g t h}{R e l a t i v e V e l o c i t y}$
Time taken $= 150 / (10 + 5) = 150 / 15 = 10$
Hence, the time taken by the parrot to cross the train is $10 s e c .$

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A train of 150m in length is going towards the north direction at a speed of10m/s. A parrot flying at the speed of 5m/s towards the south direction parallel to the railway track. The time taken by the parrot to cross the train is equal to

A train of $150 m$ in length is going towards the north direction at a speed of $10 m / s .$ A parrot flying at the speed of $5 m / s$ towards the south direction parallel to the railway track. The time taken by the parrot to cross the train is equal to