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Posted: Sat May 04, 2013 6:39 pm
by thibodeaux
http://math.stackexchange.com/questio....r-is-it
I'm pretty sure I'd make the teacher cry.
Edited By thibodeaux on 1367707223
Posted: Sat May 04, 2013 7:26 pm
by Malcolm
I don't understand what's wrong with this question. I think the student answered the question wrong, yet my friend insists the student got the question right.
I feel like I'm missing something critical here. What am I thinking wrong?
Sarcasm overload. Must get a beer.
Posted: Sat May 04, 2013 9:08 pm
by TheCatt
Oh man... when I was in high school physics the teacher asked a question like:
A car linearlly accelerates from 10m/s to 20m/s over 10s. How far did it go? (Or a rocket, or whatever).
Her answer: 50m
My answer: 150m
I "got it wrong"
Posted: Sat May 04, 2013 10:40 pm
by Malcolm
How did you get it wrong? There are formula that are literally single equations for that sort of shit. Multiple choice?
Posted: Sun May 05, 2013 6:51 am
by TheCatt
No, free form test. She somehow thought that the base 10 m/s could be discarded. And treated the problem as accelerating me 0m/s to 10m/s.
Me: Well, a vehicle going 10m/s over 10s would go 100m. Yet this one was going faster, but didnt go as far?
Her: That's an entirely different problem.
Posted: Sun May 05, 2013 9:44 am
by thibodeaux
.5 * a * t^2 + v0 * t
Edited By thibodeaux on 1367761498
Posted: Sun May 05, 2013 12:06 pm
by Malcolm
TheCatt wrote:Her: That's an entirely different problem.
I would have responded with, "Ok, let's test this theory of yours." Then I would have found the nearest calculus textbook and thrown it directly at her.
Posted: Sun May 05, 2013 3:50 pm
by TheCatt
Well, I was in 10th grade, I didn't know calculus yet... but, like Thib's formula, it's a square plus a triangle.