Two particles attached at diametrically opposite points of a rotating ring: new angular speed

1. A.
   $\omega\frac{M}{M + m}$
2. B.
   $\omega\frac{M + 2m}{M}$
3. C.
   $\omega\frac{M}{M + 2m}$
4. D.
   $\omega\frac{M - 2m}{M + 2m}$

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1. A.
   $\frac{M}{(M + m)}$
2. B.
   $\frac{(M + 2m)}{2M}$
3. C.
   $\frac{2M}{(M + 2m)}$
4. D.
   $\frac{2(M + 2m)}{M}$

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