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Systems of Particles and Rotational Motion — Physics STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 SciencePhysicsSystems of Particles and Rotational Motion1 Mark
Question
Explain why the speed of a whirl wind in a tornado is alarmingly high.
✓

Answer

In a whirl wind, air from nearby regions gets concentrated in a small space. Moment of inertia (I) decreases on account of decrease in distance. As $\text{L}=\text{I}\omega,$ = Constant, therefore, angular speed o increases to alarming high values.

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