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The position Vectors of two identical p...

The position Vectors of two identical particles with respect to the origin in the three-dimensional coordinator system are `r_1and r_2` The position of the centre of mass of the system is given by

A

`vecx-vecy`

B

`(vecx+vecy)/(2)`

C

`(vecx-vecy)`

D

`(vecx-vecy)/(2)`

Text Solution

Verified by Experts

The correct Answer is:
B
`vecr=(m_(1)vecr_(1)+m_(2)vecr_(2))/(m_(1)+m_(2))=(m(vecx+vecy))/(2m)=(vecx+vecy)/(2)`
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