Wash: I mean, I'm the one she swore to love, honor and obey. Mal: Listen... She swore to obey? Wash: Well, no, not...

'War Stories'


The Crying of Natter 49  

Off-topic discussion. Wanna talk about corsets, duct tape, or physics? This is the place. Detailed discussion of any current-season TV must be whitefonted.


Dana - Feb 08, 2007 12:30:24 pm PST #9390 of 10001
I'm terrifically busy with my ennui.

I don't believe in calculus.


Gudanov - Feb 08, 2007 12:31:16 pm PST #9391 of 10001
Coding and Sleeping

It takes 2 seconds to accelerate to 40m/s. 40m/s = 10 * t^2.


Aims - Feb 08, 2007 12:31:35 pm PST #9392 of 10001
Shit's all sorts of different now.

I don't believe in calculus.

::claps slide rules together::


Gudanov - Feb 08, 2007 12:32:25 pm PST #9393 of 10001
Coding and Sleeping

From that you can figure the distance where d = vt + 1/2at^2


§ ita § - Feb 08, 2007 12:32:27 pm PST #9394 of 10001
Well not canonically, no, but this is transformative fiction.

Is "They really liked you, but didn't think you were precisely right for that job, so they passed your resume on to another department." the interview equivalent of "Let's just be friends."?

Because I haven't had an interview response other than that so far. One position will let me re-interview for it, but not for a month or so. By which time I'd really like to be already employed.

Also, how does one correctly punctuate the first sentence?


Polter-Cow - Feb 08, 2007 12:33:21 pm PST #9395 of 10001
What else besides ramen can you scoop? YOU CAN SCOOP THIS WORLD FROM DARKNESS!

It takes 2 seconds to accelerate to 40m/s. 40m/s = 10 * t^2.

Well, fuck a duck.

From that you can figure the distance where d = vt + 1/2at^2

I don't remember anything.

Also, how does one correctly punctuate the first sentence?

You don't need that first comma.


tommyrot - Feb 08, 2007 12:34:06 pm PST #9396 of 10001
Sir, it's not an offence to let your cat eat your bacon. Okay? And we don't arrest cats, I'm very sorry.

All the whole "frictionless roller coaster" thing means is that the velocity can change direction without losing energy. And we can subtract the 1ms starting velocity from the ending velocity. So really, it's "how far does the roller coaster travel if it fell straight down, accelerated at 10m/s² and had a final velocity of 40m/s."

If the thingie traveled at a constant 40m/s for four seconds, it went 40m. But of course it was accelerating, so the distance would be less than that. Here's the trick: Because the acceleration is constant (eta: and the velocity started at 0), we can just divide the 40 in half.


Nilly - Feb 08, 2007 12:34:39 pm PST #9397 of 10001
Swouncing

d = vt

That's if your velocity is a constant. When there's an acceleration, you can't multiply those two things when v is different for each t!

So it's actually:

y=y0+v0t+0.5*a*t^2

(which is exactly your integral, because the integral over v, which is v=v0+at is exactly what I wrote above.)

[Edit: x-post integrals]


§ ita § - Feb 08, 2007 12:36:05 pm PST #9398 of 10001
Well not canonically, no, but this is transformative fiction.

You don't need that first comma.

That's so not the big problem with the sentence.

If the thingie traveled at a constant 40m/s for four seconds, it went 40m

Not really paying attention to the problem as a whole--but in it is there a reason travelling 40m/s for 4s doesn't take you 160m?


Polter-Cow - Feb 08, 2007 12:37:35 pm PST #9399 of 10001
What else besides ramen can you scoop? YOU CAN SCOOP THIS WORLD FROM DARKNESS!

If the thingie traveled at a constant 40m/s for four seconds, it went 40m.

So it WAS 4 seconds! v = at, not at^2. At least that makes sense.

y=y0+v0t+0.5*a*t^2

Where did the 0.5 come from?