Question

The system of the collinear and the parallel force for the calculations of the equations in the determination of the fluid pressure are simplified as ________________

(a) The simplified collinear force system gives us a net force and the parallel force system gives us a simplified force, and then we add it vectorially

(b) Such simplification is not possible

(c) The simplification is usually done by not considering the directions of the both

(d) The simplification is done by considering the rotations only

I got this question in examination.

This intriguing question originated from Fluid Pressure topic in portion Centre of Gravity and Centroid of Engineering Mechanics

Answer 1

Correct choice is (a) The simplified collinear force system gives us a net force and the parallel force system gives us a simplified force, and then we add it vectorially

The explanation: The simplification is easy. The simplified force system gives us a net force and the parallel force system gives us a simplified force, and then we add it vectorially. Thus the vector addition at the last can be easily done and thus both can be simplified.