Is the block moving in an Atwood machine when climbing up a rope?

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Homework Help Overview

The problem involves an Atwood machine scenario where a person is climbing a massless rope attached to a block of equal mass on the other side of a frictionless pulley. The main question is whether the block moves when the person climbs a distance along the rope and, if so, how much it moves.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • Participants discuss the implications of the climbing motion on the block's movement, questioning the relationship between the distances moved by the climber and the block. There are inquiries about the clarity and completeness of the original poster's work and the need for better explanations of the equations used.

Discussion Status

Some participants have provided feedback on the clarity of the original poster's images and the need for more detailed explanations of the equations. There is a suggestion to refer to another thread that addresses the same problem, indicating that the discussion may be redirected there.

Contextual Notes

Participants note issues with the readability of attached images and the format of the original poster's work, emphasizing the importance of clear communication in problem-solving. There is also a mention of the community's preference for typed equations over handwritten notes.

jk494
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Homework Statement


[/B]

As stated in the included pics, you are climbing up a massless rope on a frictionless pulley, attached to a block equal to your mass which is hanging on the other side. You move a distance d along the rope. Does the block move? If so, how much?

Homework Equations


F = ma

The Attempt at a Solution


My attached work
 

Attachments

  • Screenshot_2018-08-23 Challenge Problems Concept of Force - MIT8_01SC_problems07 pdf.png
    Screenshot_2018-08-23 Challenge Problems Concept of Force - MIT8_01SC_problems07 pdf.png
    19.5 KB · Views: 493
  • Screenshot_2018-08-24 soln pdf.png
    Screenshot_2018-08-24 soln pdf.png
    22.7 KB · Views: 616
  • image1.JPG
    image1.JPG
    71.9 KB · Views: 469
Last edited:
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all of your attached images are too small to be readable
 
phinds said:
all of your attached images are too small to be readable
I replaced them. Are these better?
 
jk494 said:
I replaced them. Are these better?
The first one is now readable. The 2nd one still not. I'm an old guy. Maybe some of our younger members will be able to. Also, you REALLY shouldn't post chicken-scratch handwritten solutions. Typed-in work is the order of the day here.
 
@jk494 as @phinds has said, you need to post your work as equations in the thread. Attached images of handwritten work are not acceptable.
 
jk494 said:
I replaced them. Are these better?
My problem is not the readability but the lack of explanation.
No definition of variables, no text to explain the starting equations in terms of elementary principles or how equations are combined, and the tabular layout robs it of clues as to the logical flow.
 

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