Question

If solving the question in 3D calculations is difficult, then use the 2D system and then equate the ratio of the product of the centroid of the section to its mass to the total mass of the body to the centre of mass.

(a) True

(b) False

I had been asked this question in unit test.

Origin of the question is Centre of Mass topic in chapter Centre of Gravity and Centroid of Engineering Mechanics

Answer 1

Correct option is (a) True

The explanation is: The answer is obviously yes. If we are having any difficulty in making the vector components, then we can go in 2D. As if the particle is in equilibrium, the net force will be zero. No matter where you see first. Net force is zero.