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A large number of particles are placed a...

A large number of particles are placed around the origin each at a distance R from the origin. The distance of the centre of mass of the system from the origin is

A

`=R`

B

`leR`

C

`gtR`

D

`geR`

Text Solution

Verified by Experts

The correct Answer is:
B
If the particles are uniformly placed at a distance R from the origin then the centre of mass will be situated at the origin. Again, when all the particles are placed at a distance R from the origin at one side of it, then the centre of mass will be situated at a distance of R from the origin. For any other kind of mass distribution, the centre of mass will be situated between the origin and R.
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