Question

The speed of a whirl wind in a torando is alarmingly high. Why?

Answer 1

Hi,

Here is your answer,

In a whirl wind, the air from nearby region from nearby region gets concentrated in a small space thereby decreasing the value of moment of inertia considerably. Since, Iω = constant, due to decrease in moment of inertia, the angular speed becomes quite high.


Hope it helps you !

Answer 2

In tornado, the momentum of inertia of air will go on the decreasing as the air moves towards the centre. This will be accompanied by an increase in angular velocity such that the angular momentum is conserved. That's why The speed of a whirl wind in a torando is alarmingly high.