If the acceleration of an object is equal to zero, it means that the object is not experiencing any change in its velocity. In other words, the object is either at rest or moving at a constant velocity.
If the object is at rest and has zero acceleration, it will continue to remain at rest. According to Newton's first law of motion (the law of inertia), an object at rest will stay at rest unless acted upon by an external force.
If the object is already in motion and has zero acceleration, it will continue to move with a constant velocity. This is also in accordance with Newton's first law, which states that an object in motion will continue to move at a constant velocity unless acted upon by an external force.
In both cases, zero acceleration implies that there is no net force acting on the object. The forces pushing or pulling in different directions are balanced, resulting in no change in the object's velocity.