Line Integral Homework: Solving Problems with W = F*dr and Pictures

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Homework Help Overview

The discussion revolves around a line integral problem involving the work done, represented by the equation W = F*dr. The original poster has provided images related to the problem but has not articulated a specific question regarding the details of the problem.

Discussion Character

  • Exploratory, Assumption checking, Problem interpretation

Approaches and Questions Raised

  • Participants are discussing the clarity of the original poster's question and the quality of the provided images. There is an emphasis on identifying potential errors in the original poster's work and exploring the specifics of parts b and c of the problem, including the need for line equations and parametric forms.

Discussion Status

Some participants have offered guidance on improving the clarity of the question and the images. There is an ongoing exploration of the problem's components, particularly regarding the integration paths and the formulation of equations for different segments.

Contextual Notes

The original poster's images are noted to be blurry, which may hinder understanding. There is also mention of a potential error in the direction of integration for part a, as well as a lack of clarity on parts b and c.

Erbil
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Homework Statement



Given by picture.

Homework Equations



W = F*dr

The Attempt at a Solution



Given by pictures.
 

Attachments

  • lineintegral.jpg
    lineintegral.jpg
    11.5 KB · Views: 423
  • IMAG0160.jpg
    IMAG0160.jpg
    9.8 KB · Views: 407
  • IMAG0161.jpg
    IMAG0161.jpg
    12.1 KB · Views: 395
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You should really say what your question about the problem is. And providing less blurry snapshots would really help. If the question is 'where did I go wrong' it looks to me like it's at the very end. Try and find it. You have a much clearer view of your work than I do.
 
Ok.You're right.I will try to fix my fault.But I don't have any idea about b and c? Can you help me for b and c?
 
Erbil said:
Ok.You're right.I will try to fix my fault.But I don't have any idea about b and c? Can you help me for b and c?

c is just two straight line paths. What's a line equation for each part? And if you want a circular path it's probably easiest to use trig functions to describe it. Can you give a parametric form for the circle using cos and sin? BTW I think you are also integrating backward in part a). You want to go from (1,0) to (0,1), not the other way around.
 
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