Discussion :: Physics
- A man standing close to the platform at a railway station experiences a pulling force towards a fast moving train because of ________ .
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A.
Gravitational force between train and man |
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B.
Illusion of the man |
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C.
The centripetal force |
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D.
Pressure difference due to fast moving air in between |
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Answer : Option D
Explanation :
When a fast-moving train passes a man standing on the platform at rest, the air between train and person also moves with greater speed. This rapidly moving air, by Bernoulli's principle will have a lower pressure than the still air a few feet away.
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