What is jerk in physics? What is its unit?

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Solution

In physics, jerk, also known as jolt, surge, or lurch, is the rate of change of acceleration; that is, the derivative of acceleration with respect to time, and as such the second derivative of velocity, or the third derivative of position. Jerk is a vector, and there is no generally used term to describe its scalar magnitude. According to the result of dimensional analysis of jerk, [length/time3], the SI units are m/s3.

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