Question

If the moment of inertia of a solid sphere about a diameter is 2/5 mr2 what will be its moment of inertia about a tanget

Answer 1

Answer:

Calculate it mass and radius

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Answer 2

Moment of inertia is the name given to rotational inertia, the rotational analog of mass for linear motion. It appears in the relationships for the dynamics of rotational motion. The moment of inertia must be specified with respect to a chosen axis of rotation. For a point mass, the moment of inertia is just the mass times the square of perpendicular distance to the rotation axis, I = mr2. That point mass relationship becomes the basis for all other moments of inertia since any object can be built up from a collection of point masses.