Class 11PhysicsFluid Mechanics and Surface TensionBernoulli's Theorem and Applications of Bernoulli's Theory
MediumExplain why the roof of a building flies off during a stormy wind.
(N/A) According to Bernoulli's principle,for a streamline flow of an ideal fluid,the sum of pressure energy,kinetic energy,and potential energy per unit volume remains constant. During a storm,the wind blows at a very high velocity over the roof of the building. This high-velocity air creates a region of low pressure above the roof. Inside the building,the air is relatively still,resulting in higher atmospheric pressure beneath the roof. This pressure difference creates an upward force (lift) on the roof. When this upward force exceeds the weight of the roof,it causes the roof to fly off.
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