Question

The simplification of the forces on the axis is done as __________

(a) A particular system of rule is followed

(b) No simplification of the forces is possible

(c) The forces are already simplified and don’t need simplification

(d) The forces are very tentative quantity on terms of simplification and hence no simplification possible

This question was posed to me by my college director while I was bunking the class.

I need to ask this question from Resultant of a General Distributed Loading in chapter Centre of Gravity and Centroid of Engineering Mechanics

Answer 1

The correct answer is (a) A particular system of rule is followed

Easy explanation: A particular system of the rules is followed that is if the upward direction is taken as positive then the downward direction is taken as negative. This is same as done with the couple in the 2D. That is the forces can be easily simplified. If taken in the vector form then the task is even easier.