Long Bridge
A man is standing on a railway bridge which is 180m long. He finds that a train crosses the bridge in 20second?
A man is standing on a railway bridge which is 180m long. He finds that a train crosses the bridge in 20seconds but himself in 8 seconds. Find the length of the train and its speed.
Ans: length of train=120m
Speed of train=54kmph
EXPLAIN IT WITH STEPS>>>>>>>>>>>>
speed = distance/time
180/20 = 9metres/second = 32.4km/h
speed of train = 32.4km/h
for length of train:
distance(length of train) = speed x time
length of train = 9 x 8 = 72
length of train = 72 metres
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