Consider a circular horizontal plane (like a round tabletop) rotating around its center.
Consider a body A resting on this tabletop. Since the tabletop is rotating around its center, the body is moving along with it in a circular motion around the center of the circle.
I understand that in circular motion, there's always a centripetal force, pushing the object towards the center of the circle. And in this case, this force is the static friction force, operating on the radial axis towards the center.
I have two questions regarding this:
I was under the impression that a static friction force, or any friction force, always operates in the opposite direction of some other force which operates on the same body. Is this correct? If so, what is the additional force (opposite to the friction force) that I'm missing in the above scenario?
Is the static friction force operating only on the radial axis towards the center? Or is there also static friction along another axis?