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At the given instan four particle having...

At the given instan four particle having masses and accleration as shown in the shown in the figure lie at verties of a square. Acceleration on the center of mass of system is : (A) `(1)/(5)(overset(wedge)(i) + overset(wedge)(j))` (B) `(1)/(5)(overset(wedge)(j) + overset(wedge)(i))` (C) `(1)/(5)(overset(wedge)(i) - overset(wedge)(j))` (D) `-(1)/(5)(overset(wedge)(i) + overset(wedge)(j))`

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