MHT CET 2024 Physics question

Three identical metal balls each of radius 'r' are placed such that an equilateral triangle is formed when centres of three ball are joined. The centre of mass of the system is located at

(A)centre of one of the balls.
(B)point of intersection of medians.Correct
(C)line joining centres of any two balls.
(D)on the circumference of any one of the balls.

Answer: (B)

Solution

Each ball is identical and uniform, so its mass can be treated as concentrated at its centre. The system is then equivalent to three equal point masses at the vertices of an equilateral triangle. For equal masses, , which is the centroid of

See the full step-by-step solution

Create a free account to read the complete working, and practise questions like this in a timed test.

Create a free account

Question ID VK-099628