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Four particle of masses m(1)=2kg,m2=4kg,...

Four particle of masses `m_(1)=2kg,m_2=4kg,m_(3)=1kg` and `m_(4)` are placed at four corners of a square as shown in figure. Can mass of `m_(4)` be adjusted I such a way that the centre of mass of system will be at the centre of the square C.

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