Three forces which act on a rigid body to keep it in equilibrium. The forces must be coplanar and?

Three forces which act on a rigid body to keep it in equilibrium. The

1.	Three forces which act on a rigid body to keep it in equilibrium. The forces must be coplanar and?
A.	Concurrent
B.	Parallel
C.	Concurrent parallel
D.	None of these
Answer» B. Parallel

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Three forces which act on a rigid body to keep it in equilibrium. The forces must be coplanar and?

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