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/sci/ - Science & Math

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File: 22 KB, 720x480, 720px-Schematic_diagram_of_Jerk,_Acceleration,_and_Speed.svg.png [View same] [iqdb] [saucenao] [google]
12684249 No.12684249 [Reply] [Original]

What is jerk even used for? Have you ever used it?

>> No.12684269

>>12684249
4th coefficient in a control loop

>> No.12684316
File: 56 KB, 640x320, 1499895297-jerk-chicken-delish.jpg [View same] [iqdb] [saucenao] [google]
12684316

>>12684249
Yeah, it's used for like pic related.

>> No.12684324

>>12684249
A helicopter that has booster rockets on the bottom and the back.

>> No.12684333

>>12684249
Roller coasters. Cars. Planes. It's used to determine the duration for which a human can sustain a g-force. A roller caster that fails to account for jerk will have all its passengers black out.

>> No.12684338

>not using crackle and pop in your daily life
what the fuck do you guys even do for a living

>> No.12684356

>>12684338
When my physics professor told me about these I knew I was in the right field. No profession should take itself too seriously.

>> No.12684526

Imagine that you get on the train and it slowly starts to accelerate. Even if acceleration is pretty high for some time, you have time to prepare and don't fall.
Now imagine that the train starts to accelerate unexpectedly and rapidly. This can cause all sorts of surprises.
Second case has high jerk but same acceleration.

>> No.12684532
File: 193 KB, 1545x869, coomer.png [View same] [iqdb] [saucenao] [google]
12684532

>>12684249
Yes actually, I jerk all the time.

>> No.12684635

So we have infinite crack here?

>> No.12684641

Yes, used heavily in traction control algorithms in the auto world

>> No.12684698

>>12684249
it's important in motion control and robotics. Even higher order derivatives need to be taken account in mechanisms like cams.

>> No.12684718

>>12684249
Ya man

>> No.12684742

forget jerk, what is absement used in? Absity? Abceleration?

>> No.12684799

>>12684742
Let's say that volume of water flow per second is proportional to lever displacement. Then the total volume of water is absement multiplied by coefficient.