What Are the Unknown Masses and Tensions in a 20kg Static Pulley System?

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    Pulley Static
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Homework Help Overview

The discussion revolves around a static pulley system involving a known mass of 20 kg and the unknown masses m2 and m3, as well as the tensions in the system. Participants are seeking guidance on how to approach the problem.

Discussion Character

  • Exploratory, Assumption checking, Problem interpretation

Approaches and Questions Raised

  • Participants discuss the importance of drawing free body diagrams for the blocks and question the conditions necessary for the blocks to remain static. There is mention of considering how the forces from m2 and m3 affect the system.

Discussion Status

The discussion is ongoing, with some participants suggesting methods to analyze the problem, such as applying Newton's second law to the pulley. There is no explicit consensus yet, but various lines of reasoning are being explored.

Contextual Notes

Participants express uncertainty about where to start and the implications of the static condition on the forces involved in the system.

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Homework Statement




Mass 1 is 20Kg, find m2 and m3 and the tensions please help


I do not know where to start :( Please help.

 
Last edited by a moderator:
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Please helppppppp
 
Do you mean the set-up in the figure attached?

Draw the free body diagrams for all blocks. What are the conditions that the blocks are static?

ehild
 

Attachments

  • pulleys3.JPG
    pulleys3.JPG
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think of how m1 can be static. the force on the other side of the rope can be difficult, think carefully about how m2 and m3 contribute. perhaps apply f=ma to the pulley; the result is interesting
 

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