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  2. Jerk (physics) - Wikipedia

    en.wikipedia.org/wiki/Jerk_(physics)

    Jerk (also known as jolt) is the rate of change of an object's acceleration over time. It is a vector quantity (having both magnitude and direction). Jerk is most commonly denoted by the symbol j and expressed in m/s 3 ( SI units ) or standard gravities per second ( g 0 /s).

  3. Fourth, fifth, and sixth derivatives of position - Wikipedia

    en.wikipedia.org/wiki/Fourth,_fifth,_and_sixth...

    Snap, [6] or jounce, [2] is the fourth derivative of the position vector with respect to time, or the rate of change of the jerk with respect to time. [4] Equivalently, it is the second derivative of acceleration or the third derivative of velocity, and is defined by any of the following equivalent expressions: = ȷ = = =.

  4. Vibration fatigue - Wikipedia

    en.wikipedia.org/wiki/Vibration_fatigue

    The standard procedure is to calculate frequency response functions for the analyzed structure and then obtain the stress responses, based on given loading or excitation. [3] By exciting different modes, the spread of vibration energy over a frequency range directly affects the durability of the structure. Thus the structural dynamics analysis ...

  5. Shock (mechanics) - Wikipedia

    en.wikipedia.org/wiki/Shock_(mechanics)

    In mechanics and physics, shock is a sudden acceleration caused, for example, by impact, drop, kick, earthquake, or explosion.Shock is a transient physical excitation. Shock describes matter subject to extreme rates of force with respect to time. Shock i

  6. State-transition matrix - Wikipedia

    en.wikipedia.org/wiki/State-transition_matrix

    The state-transition matrix is used to find the solution to a general state-space representation of a linear system in the following form ˙ = () + (), =, where () are the states of the system, () is the input signal, () and () are matrix functions, and is the initial condition at .

  7. Tax-loss harvesting: How to turn investment losses into money ...

    www.aol.com/finance/tax-loss-harvesting-turn...

    Tax-loss harvesting is the process of writing off the losses on your investments in order to claim a tax deduction against your ordinary income. To claim a loss on your current year’s taxes, you ...

  8. Narcissist or Jerk? 9 Signs to Watch For - AOL

    www.aol.com/lifestyle/narcissist-jerk-9-signs...

    This goes beyond being a jerk. It’s a calculated pattern of control. Sign #7: Lack of Generosity. Narcissists often feel entitled to special treatment and are less likely to be generous. They ...

  9. g-force - Wikipedia

    en.wikipedia.org/wiki/G-force

    More transient acceleration, accompanied with significant jerk, is called shock. [citation needed] When the g-force is produced by the surface of one object being pushed by the surface of another object, the reaction force to this push produces an equal and opposite force for every unit of each object's mass.