October 12, 2006 9:48 PM

What is a "jerk"?

What is a "jerk"?

Definition 1:
The third derivative of position, the second derivative of velocity, or the first derivative of acceleration.

Definition 2:
Imagine that your friend was driving and you were in his car. Your friend saw the traffic light turned yellow and believed that he could make it. So he stepped on the gas pedal and you experienced a pull forward. Suddenly, the traffic light turned red and your friend had to stepped on the brake. You felt being pushed back and were like "Shoot, what a jerk..."

This is from my math professor when he was trying to explain higher derivatives and how useful they are in kinematics. So I guess the moral of the story is do not be intimidated by the huge lectures and do approach your professor during their office hours. They are very friendly and willing to help.

Yang Cao | Permalink | Comment on this article | Comments (0)

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