A 150 M Long Train Is Travelling From East To West At A Speed Of 20 Ms–1. A Bird Is Flying From West To East At A Speed Of 5 Ms–1. How Long Will The Bird Take To Cross The Train?    

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Question

 

A 150 m long train is travelling from east to west at a speed of 20 ms–1. A bird is flying from west to east at a speed of 5 ms–1. How long will the bird take to cross the train?  

 

Solution

Correct option is

s

 

The speed of the bird with respect to the train

           

           

.

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