a satellite's orientation can be controleld using a flywheel placed inside the satellite and fixed to it. the satellite's moment of inertia around the relevant axis of rotation is 3.0 kgm^2. the flywheel is a disk with a mass of 500g and a radiuc of 5cm. how many revolutions must the flywheel undertake in order to change the orientation of the satellite by 90 degrees .

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Center of Gravity and Centroid

The term center of gravity indicates the position or location of a point about which the whole weight of a body or system is supposed to be concentrated, which means the whole weight of the body or system works through this point. It is closely related to mass distribution. For all positions of the body, the center of gravity would be a single point.