- If an
**object is at equilibrium**, then the forces are balanced which means that**resultant force is zero**. According to F = ma, the object's acceleration also zero when force in equilibrium achieved.

An object at equilibrium is either ...

- at rest and staying at rest, or
- in motion and continuing in motion with the same speed and direction.

Object at equilibrium position. The load is static.

Force A = 3.4 N at an angle of 161 degree

Force B = 9.2 N at an angle of 70 degree

Force C = 9.8 N at an angle of 270 degree

**A triangle of forces diagram showing forces are in equilibrium**

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