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Bernoulli's Principle

A train goes ...

Question

A train goes past a person standing at the edge of a platform at high speed. Then the person will be:

A

attracted towards the train

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B

unaffected by the train

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C

reflected by the train

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D

affected only if its speed is greater than critical velocity.

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Solution

The correct option is C attracted towards the train
As train goes by, air particles near the train also start moving with it which creates low pressure region by Bernoulli's principle. So a person standing at the edge of the platform will be attracted towards the train.

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