Explain why roof of building flyout during stormy wind.

Vedclass pdf generator app on play store
Vedclass iOS app on app store

The velocity of air on upper side of roof is more hence low pressure would exist, whereas the velocity of air at below the roof is less and more pressure. Due to excess pressure the roof of building flyout.

Similar Questions

The Pitot tube shown in the figure is used to measure fluid flow velocity in a pipe of cross sectional area $S$. It was invented by a French engineer Henri Pitot in the early $18^{th}$ century. The volume of the gas flowing across the section of the pipe per unit time is (The difference in the liquid columns is $\Delta h,  \rho_0$ and  $\rho$  are the densities of liquid and the gas respectively) :-

The diagram (figure) shows a venturimeter, through which water is flowing. The speed of water at $X$ is $2\,cm/s.$ The speed of water at $Y$ (taking $g = 1000 \,cm/s^2$ ) is ........ $cm/s$

A fully loaded boeing aircraft has a mass of $5.4 \times 10^5\,kg$. Its total wing area is $500\,m ^2$. It is in level flight with a speed of $1080\,km / h$. If the density of air $\rho$ is $1.2\,kg\,m ^{-3}$, the fractional increase in the speed of the air on the upper surface of the wing relative to the lower surface in percentage will be $\left( g =10\,m / s ^2\right)$

  • [JEE MAIN 2023]

When a fluid passes through a constricted part of a pipe, what happens to its velocity and pressure ?

What is a venturi-meter ? Explain its construction and working.