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The position co-ordinates of the centre ...

The position co-ordinates of the centre of mass of a system of three particles of equal masses which are placed on the verctices of an equilateral triangle of a side a are shown. Locate centre mass?

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`x_(cm)=(m(0)+m(a)+m(a/2))/3_m` `x_(cm)=(3m1/2)/(3m)=a/2` `y_(cm)=(m(0)+m(0)+m((sqrt3)/2a))/(3m)=a/(2sqrt3)` co-ordinates of the centre of mass of the system are`(a/2,a/(2sqrt3))`.
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