Physics·MCQ Practice

Centre of Mass of Rigid Bodies — MCQ Practice

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Version 1Updated 24 Mar 2026

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Three particles of masses $1,\text{kg}$ , $2,\text{kg}$ , and $3,\text{kg}$ are placed at the vertices of an equilateral triangle of side $a$ . If the $1,\text{kg}$ mass is at the origin $(0,0)$ and the $2,\text{kg}$ mass is at $(a,0)$ , what are the coordinates of the center of mass of the system?