Acceleration is defined as the rate of change of velocity, and the unit of acceleration is meters per second squared (m/s²). The time rate of change of acceleration, known as jerk, has units of meters per second cubed (m/s³). This can be expressed as "((meters per second) per second) per second," emphasizing the sequential nature of the changes. Thus, the unit of change of acceleration is m/s³, reflecting how acceleration varies over time. Understanding these units is crucial for analyzing motion in physics.