a train is 100m long is moving with the velocity of 72kmph find the time it takes to cross the bridge which is 2km long .
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Answer:
Distance travelled= 100m + 2 km=2.10 km
= 2100 m
Speed = 72 km / h=20 m/ s
•
• •, time taken = Distance/ speed
= 2100/20= 15s
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