IN a rotor, a hollow vertical cylindrica...

IN a rotor, a hollow vertical cylindrical structure rotates about its axis and a person rests against he inner wall. At a particular speed of the rotor, the floor below the person is removed and the person hangs resting against the wall without any floor. If the radius of the rotor is 2m and the coefficient of static friction between the wall and the person is 0.2, find the minimum speed at which the floor may be removed Take `g=10 m/s^2`.

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