Angular acceleration is a measure of how quickly the angular velocity of an object changes over time. It represents the rate at which an object's rotational speed is increasing or decreasing.

Common units of measurement for angular acceleration include radians per second squared (rad/s^2) and degrees per second squared (deg/s^2).

• Angular acceleration is crucial in understanding the motion of rotating objects.
• It helps in analyzing the forces and torques acting on rotating bodies.
• Angular acceleration is essential in designing machinery and vehicles that involve rotational motion.