What are common problems encountered when using a double pulley system?

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Homework Help Overview

The discussion revolves around understanding the mechanics of a double pulley system, specifically addressing the forces involved and the resulting acceleration. Participants are exploring the relationships between force, tension, and acceleration in this context.

Discussion Character

  • Exploratory, Assumption checking, Problem interpretation

Approaches and Questions Raised

  • Participants are attempting to visualize the problem through diagrams and are questioning the relationship between the applied force and the resulting acceleration. There is discussion about how the lower pulley affects force distribution and the role of tension in the system.

Discussion Status

Some participants have provided clarifications and corrections regarding the values and concepts involved, while others are still grappling with their understanding. There is a mix of interpretations being explored, and guidance has been offered without reaching a definitive conclusion.

Contextual Notes

There are indications of missing information, such as the specifics of the setup and the initial conditions of the problem. Participants are also navigating issues related to the accessibility of shared resources.

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Homework Statement


https://docs.google.com/file/d/0B65UbG8T0LS9SEFRTHhHZmR2NDA/edit
Question 2

Homework Equations





The Attempt at a Solution


Well I tried to draw a diagram but I don't really know where to start tbh, I also can't my head around how 1200N of force only provides 600N worthof acceleration
 
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Sorry I fixed it now
 
For starters, the lower pulley 'splits' the force the platform is pulling down with. Also, the drum is pulling on both the cable and the platform it's connected to.
 
The values 1.8kN and 1.2kN are spot on. I don't know where you got 0.9kN and 2.1kN, though. The tension 1.2kN from the drum should cause a chain of action-reaction pairs along every segment of rope.
 
I see what I did wrong now, thanks for the help
 

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