Question

Explain how the centre of gravity of an annular ring
is determined.​

Answer 1

Explanation:

That is center of gravity of a body is the point about which sum of the moments of all the gravitational forces is zero. This means the CG of a body coincides with its CM. The CG of a ring is the center of circle of which it is made. Moment of mass points of a ring about this point is zero.

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Answer 2

Explanation:

Centre of gravity means a point from which the weight of a body or system may be considered to act. In uniform gravity it is the same as the centre of mass.For regular bodies centre of gravity lies at the centre of the body.Hence we know that there will be a centre for a uniform ring lamina.Hence this centre of the ring will be centre of gravity.

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