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Question

All the particles of a body are situated at a distance $$R$$ from the origin. The distance of centre of mass of the body from the origin is


A
=R
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B
R
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C
>R
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D
R
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Solution

The correct option is A $$=R$$

In the given case it is given that all particles are at a distance $$R$$ from the origin but about the distance between the particles it does not explain.

If all particles together at $$R$$ then the centre of mass will be at $$R$$.

If all particles are in a circle separately and at a distance $$R$$ from the origin, then the centre of mass will lie on the origin.

Thus, the centre of mass of the body from the origin is $$ R$$.


Physics

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