In uniformly accelerated motion, constant velocity refers to the condition where an object maintains a steady and unchanging velocity over a certain period of time. This concept is applicable when the object experiences a constant acceleration.
In this context, constant velocity means that the object's speed remains the same, and its direction of motion does not change. It implies that the object covers equal displacements in equal intervals of time.
To achieve constant velocity in uniformly accelerated motion, the object's acceleration must be zero. This means that there are no external forces acting on the object, or the net force acting on it is balanced, resulting in no change in its velocity. If the acceleration is non-zero, the object's velocity will change, and it will not have constant velocity.
In summary, in uniformly accelerated motion, constant velocity occurs when the object's speed remains constant, and its direction of motion remains unchanged, implying zero acceleration.