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System of Particles and Rotational Motion

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System of Particles and Rotational Motion Class 11th

7.1 Give the location of the centre of mass of a (i) Sphere (ii) Cylinder (iii) Ring and (iv) Cube each of uniform mass density. Does the centre of mass of a body necessarily lie inside the body?
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Vishal Baghel

Contributor-Level 10

All the structures specified are symmetric bodies with uniform mass density. For all these bodies, their centre of mass will lie in their geometric centres.

Not necessarily, the centre of gravity of a circular ring is at the imaginary centre of the ring.

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