a train 100m long in 2 is to cross a river bridge of length 800 M what timeit take to cross the bridge given that the train moves with a constant what is velocity of 36 km per hour ?
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36km/h= 36×5/18=10m/sec
now time taken =( d of train+ d. of bridge)÷speed of train
= (100+800)÷10=90 sec
or 1 min 30 sec
now time taken =( d of train+ d. of bridge)÷speed of train
= (100+800)÷10=90 sec
or 1 min 30 sec
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