jerk

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jerk

[jərk]
(mechanics)
The rate of change of acceleration; it is the third derivative of position with respect to time.
A unit of rate of change of acceleration, equal to 1 foot (30.48 centimeters) per second squared per second.
References in classic literature ?
simultaneously, the chain on his collar jerked him up and back in the air, the rope on his hindquarters jerked that portion of him under, forward, and up, and the still short stick in Collins's hand hit him under the lower jaw.
Hans snubbed the rope around the tree, and Buck and Thornton were jerked under the water.
When she was touched, she jerked her bound legs and looked wildly yet simply at everybody.