A train 100m long is to cross a river bridge of length 800m.what time will it take to cross the bridge?given that the train movea with a constant velocity of 36 km/hr
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36=10m /sec
total dis.=800+100
total time=900/10=90 sec
total dis.=800+100
total time=900/10=90 sec
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Refer https://brainly.in/question/3879066
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