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.
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.
how?
Speed = Distance/Time
Speed of train = 180/20 = 9m/s
Length of train:
Distance(length of train) = Speed x Time
Length of train = 9 x 8 = 72 m