motion of observer

The motion of an observer refers to their change in position over time relative to a reference point or frame. It can involve moving in a straight line, rotating, or staying still. Whether someone is walking, driving, or standing still, their motion is described by how quickly and in what direction they change location. Observers perceive motion based on their own position and movement; what appears stationary to one might be moving to another. Analyzing an observer’s motion helps us understand dynamics in physics, including concepts like velocity, acceleration, and how different frames of reference influence observation.