Centre of mass of a system of three particles of masses 1 kg, 2 kg and 3 kg at the point (1 m,2 m,3 m) and centre of mass of another group of two particles of masses 2 kg and 3 kg is at point (−1 m,−2 m), where a 10 kg particle should be placed, so that the centre of mass of the system of all those six particles shifts to centre of mass of the first system?

Centre of mass of a system of three particles of masses 1 kg, 2 kg and

1.	Centre of mass of a system of three particles of masses 1 kg, 2 kg and 3 kg at the point (1 m,2 m,3 m) and centre of mass of another group of two particles of masses 2 kg and 3 kg is at point (−1 m,−2 m), where a 10 kg particle should be placed, so that the centre of mass of the system of all those six particles shifts to centre of mass of the first system?
Answer» Centre of mass of a system of three particles of masses $1 kg$ , $2 kg$ and $3 kg$ at the point $(1 m, 2 m, 3 m)$ and centre of mass of another group of two particles of masses $2 kg$ and $3 kg$ is at point $(- 1 m, - 2 m)$ , where a $10 kg$ particle should be placed, so that the centre of mass of the system of all those six particles shifts to centre of mass of the first system?

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