Getting the average velocity from a parabolic curve

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Homework Help Overview

The problem involves calculating the average velocity of a ball accelerating down a ramp, with specific details about its displacement and time. The context suggests a focus on kinematics and the interpretation of motion along a parabolic curve.

Discussion Character

  • Exploratory, Conceptual clarification

Approaches and Questions Raised

  • Participants discuss the definition of average velocity and its calculation as total displacement over total time. There is confusion regarding the relevance of the parabolic curve to the average velocity calculation.

Discussion Status

Some participants have provided clarifications about the average velocity concept, while others express uncertainty about the implications of the parabolic curve on the calculation. The discussion reflects a mix of understanding and confusion, with no clear consensus reached.

Contextual Notes

One participant suggests a possible typo in the problem statement, indicating a potential misunderstanding of the question's requirements. The discussion also hints at the need for clarity regarding the relationship between the shape of the curve and average velocity.

theLHC
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Homework Statement



A ball accelerates steadily down a ramp, starting from rest. It goes 2m in 4s.
What is the average velocity?

The Attempt at a Solution


Well, i didnt attempt it because i didnt get it
i am thinking there is a typo and it is actually asking for the average acceleration, which i know how to do

here it is:

v1=0m/s
v2=x
d=2m
a=0.5m/s2
t=4s

so here is what i have

Aav= (P2-P1)/(t)
= (0-x)/(4)

now, i cannot go any furthur...
 
Last edited:
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It's asking for average velocity. Average velocity is total displacement over total time. It's not that hard.
 
Dick said:
It's asking for average velocity. Average velocity is total displacement over total time. It's not that hard.
i know that but the graph has a parabolic curve
so how do you derive the average velocity of a moving object from a parabolic curve?
 
Look up the definition of average velocity. Does the shape of the curve matter?
 
nvm
i was mistaken
sorry 4 the problem
:P
 

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