The jump in acceleration equals the force on the mass divided by the mass. Due to limitations of abstract models, algorithms for reducing vibrations include higher derivatives, such as jounce, or suggest continuous regimes for both acceleration and jerk. The Dirac delta is smoothed down by the real environment, the cumulative effects of which are analogous to damping of the physiologically perceived jerk. One could argue that a greater periodic jerk might excite a larger amplitude of oscillation because small oscillations are damped before reinforcement by a shock wave. With cam drive systems, use of a dual cam can avoid the jerk of a single cam; however, the dual cam is bulkier and more expensive. Jounce , also known as snap, is the fourth derivative of position and the first derivative of jerk.
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