A train of certain length travelling with a uniform speed of 36 km h to the power -1 crosses a bridge of 680 second find the length of the train
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- speed of a train 36km/h to power -1
- 36×5/18=10m/s to power -1 so =1/10sec
- time taken to cross bridge 680 sec
- length =distance of a train
- distance =speed ×time
- distance =1/10×680
- distance =68m (ans.)
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