A 120 m long train is moving towards west at a speed of 10ms^(-1).A small bird flying towards east at a speed of 5ms^(-1) crosses the train. What is time taken by the bird to cross the train :

A 120 m long train is moving towards west at a speed of 10ms^(-1).A sm

1.	A 120 m long train is moving towards west at a speed of 10ms^(-1).A small bird flying towards east at a speed of 5ms^(-1) crosses the train. What is time taken by the bird to cross the train :
Answer» 4 s 8 s 12 s 24 s Solution :`v_(t)=-10 m//s,v_(b)=5-(-10)=15 m//s` `:. t=(120)/(15)=8S`

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A 120 m long train is moving towards west at a speed of 10ms^(-1).A small bird flying towards east at a speed of 5ms^(-1) crosses the train. What is time taken by the bird to cross the train :

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