A man is standing on a railway bridge which is 50 metres long. He find

A man is standing on a railway bridge which is 50 metres long. He finds that a train crosses the bridge
in 4 1 seconds but himself in 2 seconds.
2
Find the length of the train and its speed.

60 m ; 20 m/sec

40 m ; 20 kmph

40 m ; 20 m/sec

40 m ; 25 m/sec

Answer» D. 40 m ; 25 m/sec

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A man is standing on a railway bridge which is 50 metres long. He finds that a train crosses the bridge in 4 1seconds but himself in 2 seconds.2 Find the length of the train and its speed.

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A man is standing on a railway bridge which is 50 metres long. He finds that a train crosses the bridge
in 4 1 seconds but himself in 2 seconds.
2
Find the length of the train and its speed.