Question

A train 100 m long is moving with a constant velocity of 60 km h-1 Find the time it takes to cross a bridge which is 1km long

Answer 1

for crossing bridge the train has to pass the bridge completely so
s= 1000 +100 =1100 m = 1.1 km
t = s/v = 1.1/60 hr = 1.1 min = 66 sec

Answer 2

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