Question

∑Fx=0, ∑Fy=0 and ∑Fz=0 are vector equations for the determination of the equilibrium equations for the fluid pressure in the body immersed in the liquid.

(a) True

(b) False

I have been asked this question during an interview.

The doubt is from Fluid Pressure topic in chapter Centre of Gravity and Centroid of Engineering Mechanics

Answer 1

Correct choice is (b) False

The best explanation: The answer is false as the equations asked are scalars. As we make the net sum of the forces along the axis equal to zero. Of course this equation comes from the solving the vector forms, but still, the result is a scalar, hence the equations are scalar.