a train moving on a straight and leveled track at a speed of 72 km/hr and passes pole in 3 seconds. find the time taken to pass the bridge of length 540m
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length of train = speed of train × time
= 72 × 5/18 × 3 { 72km/h = 72×5/18 m/s
=60 m
so,
time taken = ( length of train + length of bridge )/speed of train
=(60+540)/20 = 600/20 = 30 sec
= 72 × 5/18 × 3 { 72km/h = 72×5/18 m/s
=60 m
so,
time taken = ( length of train + length of bridge )/speed of train
=(60+540)/20 = 600/20 = 30 sec
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