Categories > Motion in A Straight Line > A 210 meter long train is moving due North at a of 25m/s. A small bird is flying due South a little above the train with speed 5m/s. The time taken by the bird to cross the train is

Motion in A Straight Line

Question: A 210 meter long train is moving due North at a of 25m/s. A small bird is flying due South a little above the train with speed 5m/s. The time taken by the bird to cross the train is


1) \[6s\]
2) \[7s\]
3) \[9s\]
4) \[10s\]
Solution: Explanation: Explanation

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