A 210 𝑚 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 speed 5 𝑚/𝑠. The time taken by the bird to cross the train is

April 13, 2022

by Ezee_Notes

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Physics Problems

Question : A 210 𝑚 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 speed 5 𝑚/𝑠. The time taken by the bird to cross the train is

(A) 6𝑠

(B) 7𝑠

(D) 10𝑠

Answer : option (B)

Solution :

A 210 𝑚 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 speed 5 𝑚/𝑠. The time taken by the bird to cross the train is