Three identical metal balls, each of the radius 
are placed touching each other on a 
surface such that an equilateral triangle is formed when centres of three balls are joined. The centre of the mass of the system is located at
Text Solution
Verified by ExpertsThe correct answer is:
D
Centre of mass of each ball lies on the centre.
Centre of mass of combined body will be at the centroid of equilateral triangle.
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