Question

shortly describe rotation

Answer 1

Rotation is the turning of an object around a fixed point (2D) or an axis (3D). Every point follows a circular path about that center/axis; the motion is described by an angle (degrees or radians) and a direction (clockwise or counterclockwise). In physics, rotation can be time-dependent and is characterized by angular displacement, angular velocity, and angular acceleration. Mathematically, rotations are distance-preserving transformations (e.g., 2D rotation matrix [[cos, −sin],[sin, cos]] or quaternions in 3D).