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 Form 2 Physics Topical Questions and Answers on Fluid Flow

An aeroplane is moving horizontally through still air at a uniform speed. It is observed that when the speed of the plane is increased, its height above the ground increases. State the reason for this observation.

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Answer Text:
The increase in the speed of the plane reduces the pressure above it. The pressure below it remains the same and this leads to an upward force.


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