Math, asked by sakshamgupta2008, 2 months ago

A TRAIN PASSES 210 M LONG BRIDGE IN 21 S AND A SIGNAL IN 20 S . FIND THE SPEED OF TRAIN IN KM/H

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Answered by SarthaknKasode

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Answer:

v=l/20

(l+210)/21=v

l=20v

v=210 ms-1

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