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 Form 2 Physics Topical Questions and Answers on Fluid Flow

A student holds a sheet of paper at one end so that it hangs in the position A as shown in the figure below. Explain why the paper rises to the position B when the student blows air in the direction shown by the arrow.
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Answer Text:
The velocity of the air above the paper increases creating a region of low pressure compared to atmospheric pressure below the paper.


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