Question

To satisfy the conditions of the equilibrium, the must not only be having a net force zero, but also be properly held or constrained on its supports.

(a) True

(b) False

The question was asked in a national level competition.

This intriguing question originated from Constraints and Statical Determinacy in chapter Equilibrium of a Rigid Body of Engineering Mechanics

Answer 1

Right choice is (a) True

The best I can explain: To satisfy the conditions of the equilibrium, the must not only be having a net force zero, but also be properly held or constrained on its supports. The more the stable are the supports the more the stable is the equilibrium, that is the more easily is the equilibrium is achived.