In a rotor, a hollow vertical cylinder rotates about its axis and a person rests against the 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 2 m and the coefficient of static friction between the wall and the person is 0.2.
(i) Find the minimum speed at which the floor may be removed.
(ii) What type of speciality is associated with this question?
[take, g = 10m/s^2]
Dear student,
When the floor removed, the forces on the person are
a. weight mg downwrd
b. normal force N due to the wall, towards the centre
c. frictional l force parallel to the wall, upward.
Regards
When the floor removed, the forces on the person are
a. weight mg downwrd
b. normal force N due to the wall, towards the centre
c. frictional l force parallel to the wall, upward.
Regards