Undergrad Why v vs. t graph signifies but s vs. t^2 doesn't ?

  • Thread starter Thread starter Patatra Chowdhury
  • Start date Start date
  • Tags Tags
    Graph
Click For Summary
The discussion centers on the significance of velocity versus time (v vs. t) graphs compared to displacement versus time squared (s vs. t^2) graphs. It highlights that while both graphs have slopes with dimensions of acceleration, only the slope of the v vs. t graph directly represents acceleration. The area under the v vs. t graph has clear physical meaning, whereas the s vs. t^2 graph lacks a direct interpretation in terms of acceleration. The conversation touches on the broader implications of transitioning between physics and mathematics, suggesting that such discussions may not yield substantial insights. Ultimately, the significance of these graphs is debated, with some asserting that the relationship under constant acceleration is indeed meaningful.
Patatra Chowdhury
Messages
1
Reaction score
0
TL;DR
This is a question which crossed my mind when I was analyzing the dimensions of the quantities.
Why v vs. t graph signifies but s vs. t^2 doesn't ? This is a question which crossed my mind when I was analyzing the dimensions of the quantities.
 
Last edited by a moderator:
Physics news on Phys.org
The question isn't "why doesn't it mean something?", but "what would it mean?"
 
Are you asking why a graph of ##v## versus ##t## has some significance but a graph of ##s## versus ##t^2## doesn't have any significance? Certainly the area under each graph has different dimensions, but the slope of each graph has dimensions of acceleration. But it's only the slope of the ##v## versus ##t## graph that equals the acceleration. The slope of the ##s## versus ##t^2## graph has dimensions of acceleration but it's not equal to the acceleration.
 
Signifies what exactly?
 
Vanadium 50 said:
Signifies what exactly?
I think it just goes to demonstrate that hopping in and out between Physics to Maths may be no more than a 'brain exercise' and may or may not have 'significance'.
I have noticed that the question of what Maths Is All About has come up quite frequently, or at least been inferred, in a number of recent threads.
Mister T said:
Are you asking why a graph of v versus t has some significance but a graph of s versus t2 doesn't have any significance?
Isn't that just the distance traveled under constant acceleration? I would call that very significant.
But this sort of discussion will never get us anywhere, imo.
 
Thread 'What is the pressure of trapped air inside this tube?'
As you can see from the picture, i have an uneven U-shaped tube, sealed at the short end. I fill the tube with water and i seal it. So the short side is filled with water and the long side ends up containg water and trapped air. Now the tube is sealed on both sides and i turn it in such a way that the traped air moves at the short side. Are my claims about pressure in senarios A & B correct? What is the pressure for all points in senario C? (My question is basically coming from watching...

Similar threads

  • · Replies 30 ·
2
Replies
30
Views
3K
  • · Replies 25 ·
Replies
25
Views
4K
  • · Replies 10 ·
Replies
10
Views
4K
  • · Replies 3 ·
Replies
3
Views
3K
  • · Replies 1 ·
Replies
1
Views
2K
  • · Replies 9 ·
Replies
9
Views
428
  • · Replies 13 ·
Replies
13
Views
2K
  • · Replies 13 ·
Replies
13
Views
1K
  • · Replies 13 ·
Replies
13
Views
2K
  • · Replies 1 ·
Replies
1
Views
1K