Question
Solve please
According to principle of moments *
a. if a system of coplanar forces is in
equilibrium, then their algebraic sum is
zero
b. if a system of coplanar forces is in
equilibrium, then the algebraic sum of
their moments about any point in their
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Transcribed Image Text

According to principle of moments * a. if a system of coplanar forces is in equilibrium, then their algebraic sum is zero b. if a system of coplanar forces is in equilibrium, then the algebraic sum of their moments about any point in their