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10.A 150 m long train is moving with a uniform velocityof 45 km/hr. The time taken by the train to cross abridge of length 850 metre is(1) 56 sec(2) 68 sec(4) 92 sec(3) 80 sec |
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Answer» Total length discovered by train=850m+150m=1000m Velocity=Dispacement/time t=s/v t=1000m / (12.5m/s) t=80s Time taken to cross the bridge is 80s |
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