Rotational motion is the movement of an object around an axis or center point. This type of motion occurs when an object rotates or spins in a circular or curved path.
The main difference between linear and rotational motion is the type of path that an object follows. In linear motion, an object moves in a straight line, while in rotational motion, an object moves in a circular or curved path.
Angular velocity is a measure of how fast an object is rotating around an axis. It is usually measured in radians per second (rad/s) or revolutions per minute (rpm).
Moment of inertia is a measure of an object's resistance to changes in its rotational motion. It depends on the mass and distribution of the object's mass relative to the axis of rotation.
Torque is a force that causes an object to rotate around an axis. It is directly proportional to an object's moment of inertia and angular acceleration, and it is inversely proportional to the radius of rotation.