During circular motion, what direction does centripetal acceleration act?

Centripetal acceleration is defined as the acceleration that acts on an object moving in a circular path, directed towards the center of the circle around which the object is moving. This acceleration is essential in changing the direction of the object's velocity without changing its speed, thereby keeping it in circular motion. The term "centripetal" itself implies "toward the center," reflecting that this acceleration continually pulls the object inward, maintaining its curved trajectory.

As such, when an object moves in a circle, the constant inward force, provided by gravity, tension, or any other force, results in centripetal acceleration directed toward the center. This ensures that the object's path remains circular rather than straying off in a straight line due to inertia.