According to the principle of moments-
1
If a system of coplanar forces is in equilibrium, then their algebraic sum is zero
2
The algebraic sum of the moments of any two forces about any point is equal to the moment of the resultant about the same point
3
Positive and negative couples can be balanced
4
If a system of coplanar forces is in equilibrium, then the algebraic sum of their moments about any point in their plane is zero
5
Question Not Attempted