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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 center 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
Suppose along arc AB there is a large number of particles.
If are `ABto0`
The position of centre of mass will be at distance R from the origin.
If are length AB increases, centre of mass of the system starts moving down ( < R).
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