A person standing near the track of a fast moving train has a tendency to fall towards it because of:

Vibration due to motion of train

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Gravitational force of attraction between person and train

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some other effect

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the high speed of train

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Solution

The correct option is D
the high speed of train

Air between person and the train moves with high velocity due to dragging effect and the air behind person is approximately still. Therefore, due to Bernoulli's principle, the pressure between the person and the train decreases and the air behind the person pushes him towards train due to which he falls towards train.

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