Question

The system of the collinear and the parallel force 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

The question was posed to me in my homework.

This is a very interesting question from Simplification of a Force and Couple System topic in chapter Force System Resultants of Engineering Mechanics

Answer 1

Correct option 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

To elaborate: 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.