aneelghimiree aneelghimiree

24-01-2021
Physics

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a railway train 100m long passes over a bridge 400m long at 20ms.1 how long will it take to pass over the bridge

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Аноним Аноним

24-01-2021

Total length to be covered=400+100=500mts

time =distance/speed

=500/20

=25 sec

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