Graphing velocity, acceleration, and position

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Homework Help Overview

The discussion revolves around graphing concepts related to velocity, acceleration, and position, particularly focusing on the relationship between these quantities and time. Participants are exploring how to represent these relationships graphically and are seeking clarification on the variables involved.

Discussion Character

  • Exploratory, Conceptual clarification, Problem interpretation

Approaches and Questions Raised

  • Participants express uncertainty about how to start graphing, specifically questioning which time values to use and how to identify the x-values for their graphs. There is a focus on understanding the definitions and roles of the variables involved in the equations for speed and velocity.

Discussion Status

The discussion is ongoing, with participants seeking clarification and guidance on interpreting graphs and the underlying concepts. Some have provided links to resources, suggesting that foundational skills in graph interpretation may be necessary for tackling the exercise.

Contextual Notes

Participants mention being given material before formal instruction, which contributes to their confusion regarding the task. There is an indication that they are expected to test their knowledge without prior teaching on the relevant concepts.

banderson9
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Homework Statement
I need help graphing velocity position and time on three different graphs when obstruction is present
Relevant Equations
P1. A driver is riding along at the steady speed of 25 m/s (90 km/h) when she notices an obstruction in the road
ahead. After a reaction time of 2 s, she applies the brakes to decelerate at the rate of 2.5 m/s2
im not sure where to start
 
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Start by drawing the velocity vs. time first. I am not sure what you mean by graphing "time". That is normally the independent variable. Please clarify.
 
im still not understanding. I understand that speed is d/t , but which time am i using; also i understand v=xf-x0/tf-t0 but what is my x value
 

Attachments

banderson9 said:
im still not understanding. I understand that speed is d/t , but which time am i using; also i understand v=xf-x0/tf-t0 but what is my x value
Look at the three figures showing coordinate axes in the pdf file you attached. The x-value is time in all three. The y value is acceleration, velocity and position. Have you been taught how to draw graphs?
 
kuruman said:
Look at the three figures showing coordinate axes in the pdf file you attached. The x-value is time in all three. The y value is acceleration, velocity and position. Have you been taught how to draw graphs?
not yet we are given material before we are taught, to test knowledge so i am really confused
 

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