Q

# With what minimum angular velocity a biker should rotate in a circular motion on the wall of a death well so that it does not fa

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From the figure

We can say that

The minimum angular velocity a biker should rotate in a circular motion on the wall of death well so that it does not fall down

will be given by

$\omega_{min}=\sqrt{\frac{g}{\mu r}}$

where

$\omega _{min}$ = minimum angular velocity

coefficient of friction