Dynamics in a circle refers to the study of the forces and movements involved when an object moves in a circular path.
The main types of dynamics in a circle are centripetal force, centrifugal force, and tangential acceleration.
Centripetal force is the force that pulls an object towards the center of a circle, keeping it in its circular path. It is always directed towards the center of the circle.
Centrifugal force is the perceived outward force that appears to push an object away from the center of a circle as it moves in a circular path. However, this is actually just an apparent force and does not actually exist.
Tangential acceleration is the change in an object's linear velocity as it moves in a circular path. It is related to dynamics in a circle as it is one of the components that determines the overall movement and forces involved in circular motion.