Determining Force applied so mass will stay at rest

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Homework Help Overview

The discussion revolves around a physics problem involving a mass hanging from pulleys and the force required to keep it at rest. The subject area includes concepts of forces, tension, and equilibrium in mechanics.

Discussion Character

  • Exploratory, Assumption checking, Conceptual clarification

Approaches and Questions Raised

  • The original poster attempts to calculate the weight of the mass and seeks assistance on the next steps. Some participants question the absence of a visual diagram, while others suggest analyzing the tension in the rope and drawing a free body diagram to understand the forces involved.

Discussion Status

The discussion is ongoing, with participants exploring different aspects of the problem. Guidance has been offered regarding the relationship between tension and weight, as well as the importance of free body diagrams in analyzing the forces acting on the system.

Contextual Notes

The absence of the diagram initially posed a challenge for participants attempting to provide assistance. The original poster has since shared a link to the diagram, which may facilitate further discussion.

uazaga
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A weight of mass 12.5 Kg hangs from very light pulleys as shown in fig. What force must be applied to the rope so that the mass stays at rest.

M=12.5 Kg
W=mg
a=g=9/8 m/s^2

M=12.5 Kg
W = mg = 12.5 x 9.8 = 122.5 N
I've done this much but I have no clue what to do now. Can someone please help me out?
 

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the figure doesn't show, therefore i am unable to help u, if u want u can send it to my email so i can try it. its [email address deleted by moderator]
 
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Can you find the tension in each part of the rope and relate it to the weight you have calculated? Hint: Draw a free body diagram of the pulley that is directly over the hanging mass. If that pulley is at rest, what must be true about the forces acting on it?
 
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