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The radius of gyration about an axis through the center of a hollow sphere with external radius and internal radius is
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Important Questions on Rotational Mechanics
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A hollow sphere and a solid sphere, of equal mass and equal radii roll down without slipping on an inclined plane, If the torque experienced by the hollow sphere and solid sphere are and respectively, then
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From a circular cardboard of uniform thickness and mass , a square disc of the maximum possible area is cut. If the moment of inertia of the square with the axis of rotation at the centre and perpendicular to the plane of the disc is the radius of the circular cardboard is
