Strong Winds During A Storm Blow Away The Roof-Tops. Give Reasons.
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Explanation:
Pressure at a point is inversely proportional to the velocity of the fluid molecules at the point. The faster the fluid dlows the lesser is the pressure at that point.
In case of a roof, the wind above the roof creates a very low pressure over the roof outside when compared with the pressure inside part of the roof. When this pressure difference between the inside part and outside the roof increases beyond a limit the roof blows.
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Answer:
The high wind blowing over the roof creates a low pressure in accordance with Bernoulli's principle. ... This difference of pressure causes an upward thrust and the roof is lifted up.
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