1. Centripetal Force: This force always acts towards the center of the circle and is responsible for keeping the object moving in a circular path. It's not a separate force, but rather a net force resulting from other forces like tension, friction, or gravity.

2. Tangential Force: This force acts perpendicular to the centripetal force and is responsible for changing the object's speed. If there's no tangential force, the object will move at a constant speed. If there is a tangential force, the object will speed up or slow down.

It's important to note that these forces are not independent. The centripetal force is required for circular motion to occur, while the tangential force affects the object's speed within that circular motion.