4 ms·
I always thought it was the third derivative of position
by andy99 1y ago
I always thought it was the third derivative of position
- pinoy420 1y agoNo you didn’t. Hacker news moment.
- jowea 1y agoI sincerely was wondering whether it was about the person descriptor or the physics term.
- Ygg2 1y agoOh, snap! And crackle and pop.
- cloudfudge 1y agoThis is what I thought the article was going to be about.
- Stratoscope 1y agoI like to use the example of being a passenger in a car. • Position is where you are at any moment. If you're not moving, your position doesn't change. • Velocity is how quickly your position changes. If you are doing 30 MPH on a perfectly straight road with no stops and starts, you may not even notice you're moving until you look out the window. • Acceleration is how quickly your velocity changes. It's the force that makes you feel like you are being pushed back into your seat, for example when your velocity increases from 30 MPH to 60 MPH. • Jerk is how quickly the acceleration changes. It's the force that makes your head snap back against the headrest. A good driver will change acceleration slowly to reduce this effect. If there is too much jerk, it may mean that your driver is being a jerk.
- scyzoryk_xyz 1y agoBoth of these took some time to get there for me but maybe that's because I'm a jerk
- eclectric 1y agoThe next level i.e., rate of change of Jerk is called Jounce. However, I'm afraid I don't know how that would be described in car passenger's terms in your example.
- dalke 1y agoI personally prefer snap over jounce, as that gives the progression snap, crackle, and pop. See https://en.wikipedia.org/wiki/Fourth,_fifth,_and_sixth_derivatives_of_position https://en.wikipedia.org/wiki/Fourth,_fifth,_and_sixth_deriv...
- johnea 1y agoWhy would anyone downvote this? Obviously, someone on the intertubes was being a jerk about jounce!
- throwawaylaptop 1y agoCars have "jounce dampers", also known as bump stops.
- monstertank 1y agoIts one of my favourite nerd jokes. You are a 3rd derivative of position!
- imtringued 1y agoI was thinking the same.