What is jerk definition?

Jerk is a term used in physics to describe the rate at which an object's acceleration changes over time. It is the third derivative of position with respect to time, or the first derivative of acceleration. In everyday language, jerk can be thought of as the sudden change in motion that causes discomfort or injury, such as whiplash in a car accident or a jarring movement during exercise. Jerk is important in engineering and motion control because it can affect the performance and stability of machines and systems. Mathematically, jerk is measured in units of meters per second cubed (m/s³) or feet per second cubed (ft/s³).