Which of the following theorem state that the algebraic sum of the moment of a system of coplanar forces about a moment centre in their plane is equal to the moment of their resultant force about the same moment centre?

Correct option is A

Varignon’s Theorem states: "The moment of a resultant force about a point is equal to the algebraic sum of the moments of all individual forces acting on the system about the same point."
Mathematically,
MR = ∑Mi
where MR​ is the moment of the resultant force and Mi​ are the moments of individual forces.
Information Booster:
· Used in structural and mechanical engineering for moment calculations.
· Helps simplify complex force systems.
· Used in determining centroid and center of gravity.
· Helps in the calculation of torque in machines.