What is Centre of gravity and what is moment of inertia?

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Accepted Answer

Centre of gravity is the point at which the entire weight of an object can be considered to act. Moment of inertia is a measure of an object's resistance to changes in its rotation.

Centre of gravity is the point where the entire weight of an object can be considered to act.
It is the point at which the object would balance if suspended.
For a symmetrical object, the centre of gravity is at its geometric center.
Moment of inertia is a measure of an object's resistance to changes in its rotation.
It depends on the mass distribution of the object and the axis of rotation.
Objects with more mass distributed towards the axis of rotation have lower moment of inertia.
Examples: A thin ring has a higher moment of inertia than a solid disk of the same mass.

What is Centre of gravity and what is moment of inertia?

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