What is the Tension in a Pulley System?

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    Pulley Tension
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Homework Help Overview

The discussion revolves around determining the tension in a pulley system, specifically focusing on the relationships between different tensions and the forces acting on the pulleys. The subject area includes mechanics and forces, particularly the concept of tension in a system influenced by gravity.

Discussion Character

  • Exploratory, Assumption checking, Problem interpretation

Approaches and Questions Raised

  • Participants discuss the calculation of tension based on gravitational force and explore the relationships between different tensions in the system. There are attempts to recall previous knowledge about how tensions might relate to the weight in the system, with some uncertainty expressed about the specifics.

Discussion Status

The discussion is ongoing, with participants questioning their understanding of the relationships between tensions and the forces acting on the pulleys. Some guidance has been offered regarding the need to identify which tensions are equal and the importance of the equilibrium of forces on each pulley.

Contextual Notes

Participants express confusion about the relationships between tensions and the effects of different pulley configurations, indicating a need for clarification on these concepts. There is also mention of potential constraints related to recalling prior learning.

Mikey Faye
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Homework Statement


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4-31

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Homework Equations



Tension (Ft) = Force of gravity (Fg) = m × g.

The Attempt at a Solution


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only manage to reach 60kg x 9.8 = 588N
 
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Create unknowns for all the other tensions in the system. Many will be equal. What equations can you write down relating them?
 
haruspex said:
Create unknowns for all the other tensions in the system. Many will be equal. What equations can you write down relating them?
thats where I am having trouble with or just misunderstanding. I am trying to remember what I learned about this before and something I can sort of remember is there will be half of the weight in some pulleys and some doubled?
 
Mikey Faye said:
thats where I am having trouble with or just misunderstanding. I am trying to remember what I learned about this before and something I can sort of remember is there will be half of the weight in some pulleys and some doubled?
You don't need to remember anything like that. Can you figure out which tensions will be the same? For each pulley, you know that the sum of forces on that pulley will be zero. That gives you the equations you need.
 
haruspex said:
You don't need to remember anything like that. Can you figure out which tensions will be the same? For each pulley, you know that the sum of forces on that pulley will be zero. That gives you the equations you need.
Two would be the same right?
 
Mikey Faye said:
Two would be the same right?
How many different tensions do you think there might be?
 

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