Velocity-Time Graph: Positive & Negative

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Homework Help Overview

The discussion revolves around interpreting velocity-time graphs, specifically addressing why one graph indicates positive velocity while another suggests negative velocity. The subject area pertains to kinematics and graphical analysis of motion.

Discussion Character

  • Conceptual clarification, Assumption checking

Approaches and Questions Raised

  • Participants explore the definitions of positive and negative velocity in the context of the graphs presented. There are questions regarding the interpretation of graph 2 and whether the focus should be on acceleration instead of velocity.

Discussion Status

The conversation is ongoing, with participants questioning the assumptions made about the graphs. Some guidance is provided regarding the interpretation of acceleration, but there is no explicit consensus on the definitions or interpretations being discussed.

Contextual Notes

There is a mention of negative acceleration in all three plots, which may influence the understanding of the velocity interpretations. The original poster's intent and the clarity of the graphs are also under scrutiny.

Paul_dirac
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Homework Statement
Why velocity in graph 1 is positive and in graph 2 is negative?
Relevant Equations
a=dv/dt
IMG_20190803_110107.png

Why velocity in graph 1 is positive and in graph 2 is negative?
 
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Who says it's negative on graph 2?
 
Could it be that you intended to ask about acceleration?
 
sojsail said:
Could it be that you intended to ask about acceleration?
I don't think so. The acceleration is negative in all three plots.
 

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