alleryFor three particles of equal mass, the centre of mass coincides with the:
ACurvepoint
BCentroid
CCircumcentre
DCornerpoint
Answer & Solution
Correct answer: B. Centroid
1. Three equal masses form a triangle.
2. Their average position is the triangle's own centre.
3. For three particles of equal mass, the centre of mass coincides with the centroid of the triangle.
4. So the answer is the centroid.
_Source: syllabus Physics Part I, Ch 6 'Systems of Particles and Rotational Motion'_
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