Q. Three identical metal balls each of radius $r$ are placed touching each other on a horizontal surface such that an equilateral triangle is formed, when centres of three balls are joined. The centre of the mass of system is located at
A) Horizontal surface
B) Centre of one of the balls
C) Line jointing centres of any two balls
D) Point of intersection of the medians
Explanation
The correct answer is Option D: Point of intersection of the medians.
A detailed explanation for this question is being prepared.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.