23. The radius of gyration of a uniform thin spherical shell of radiusRabout an axis tangent to the shell is (a) R (b) R (c) R. (d). 24 From a uniform sau

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Moment of Inertia

Inertia can be termed as a resistance offered by a body to change its state. A rigid body initially at rest will apply resistance when acted by an external force that tends to change its state of rest or velocity, or a body initially at motion will provide resistance in changing its state of velocity or motion for coming to a state of rest. In other words, Newton's first law of motion describes the law of inertia of a rigid body.