Question

Which of the following theorem states that the algebraic sum of the moments 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?

• A. Varignon's theorem
• B. Triangle law of forces
• C. Lami's theorem
• D. Parallelogram law of forces

Answer 1

Answer:

A. Varignon's theorem

Varignon's theorem

theorem states that the algebraic sum of the moments 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