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Position Vector

Two identical...

Question

Two identical particles are located at $\to x$ and $\to y$ with reference to the origin of three dimensional co-ordinate system. The position vector of centre of mass of the system is given by

A

\to x - \to y

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B

\frac{\to x + \to y}{2}

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C

(\to x - \to y)

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D

\frac{\to x - \to y}{2}

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Solution

The correct option is B $\frac{\to x + \to y}{2}$

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