Locate the Centriod of a Line Problem

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Homework Help Overview

The discussion revolves around locating the centroid of a line, with specific reference to dimensions and calculations involving coordinates. The original poster expresses confusion regarding the correct application of formulas and the selection of datum points for their calculations.

Discussion Character

  • Exploratory, Assumption checking, Problem interpretation

Approaches and Questions Raised

  • Participants discuss various methods for calculating the centroid, including the use of specific formulas and the implications of different datum choices. Questions arise about the correct interpretation of dimensions and the application of mathematical constants like π.

Discussion Status

The conversation is ongoing, with participants sharing their attempts and clarifying terminology. There is no explicit consensus on the correct approach, but several lines of reasoning are being explored, indicating a collaborative effort to understand the problem better.

Contextual Notes

Participants mention specific values for coordinates and lengths, but there is uncertainty about the correct application of these values in the context of the centroid calculation. The original poster has tried multiple approaches without arriving at the expected results.

smashbrohamme
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I am trying to locate the centriod of a line and I am not getting to the end.

The answer the book gives is Xbar= 5.74 and Ybar= 1.28

I am getting confused on where they are trying to call out the dimensions from what datum.

Total line length is 18.

L5 = ybar= 2.5 xbar= 0
L8= Ybar= 0 xbar= 4
L5radius = Ybar= 3.183 Xbar= 8 (would this be right technically?)

I am using my datum from the bottom left corner but I also tried to use bottom right corner and still I am not coming up with the correct answer...I am adding total xbar and dividing TL/Xbar vice verse for Ybar but I can't seem to come up with the answers.
I used the formula 2r/Pie to get my ybar for the radius line.
 

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hi smashbrohamme! :smile:

(have a pi: π :wink:)
smashbrohamme said:
I used the formula 2r/Pie to get my ybar for the radius line.

don't you need it for both y and x ?
 
im still not coming up with the correct answer...I am multiplying the 5radius to Pi, to get the actual line length for the radius5...but I am doing something wrong here. and I have been trying everything
 
hi smashbrohamme! :smile:

(what happened to that π i gave you? :confused:)
smashbrohamme said:
… I am multiplying the 5radius to Pi, to get the actual line length for the radius5

no, π/2 :wink:
 
what does n mean?
 
smashbrohamme said:
what does n mean?

it's not n it's π (pi) :biggrin:

(copy it and use it!)
 

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