Quick Question (Position vs Time Graphs) True/False (Due soon)

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Homework Help Overview

The discussion revolves around interpreting position vs. time graphs and evaluating statements regarding average velocity, displacement, and object motion based on these graphs.

Discussion Character

  • Conceptual clarification, Assumption checking, Mixed

Approaches and Questions Raised

  • Participants explore the definitions of average velocity and displacement, questioning their understanding of the terms in relation to the graphs. Some express uncertainty about the relationships depicted in the graphs and the implications for the statements provided.

Discussion Status

Participants are actively engaging with the problem, with some providing tentative answers while others seek clarification on definitions and concepts. There appears to be a mix of interpretations being explored without a clear consensus on the correctness of the statements.

Contextual Notes

One participant notes the absence of the graphs referenced in the original post, which may impact the ability to fully engage with the problem. Additionally, there is a hint that understanding the definitions of key terms is crucial for evaluating the statements.

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Homework Statement



True Or False

In the position vs. time graphs above, all times are in seconds and all positions are in meters.

Which of the following statements are true about the graphs shown above? Hint: keep in mind that velocity is a vector and speed is a scalar.
The average velocity is constant in Figures C and D
The average velocity is positive in Figure E
The object is at rest all of the time in Figure F
The net displacement is negative in Figure E
The average velocity is non-zero in Figure F

10er8tw.gif


Homework Equations


The Attempt at a Solution



I'm guessing

1.True, derivative of the graphs give you a positive constant
2. False, slope is downwards
3. False, moves up then down
4. Don't know
5. Don't know

Some help please! Some hints
 
Last edited:
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i can't see any graph in the link you gave...
 
heh sorry
 
1) the only way it makes sense to me is to compare the velocities in C and D, and they are not same (probably I'm messing up with the terminologies, a second opinion would help)

2)false

3)false

4)what is the definition of displacement? is there any difference in the initial and final position of the object?

5)what is the definition of average velocity? The answer would follow once you get the above part.
 
Thanks, got it now

it was

true
false
false
true
false
 

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