More tension in a wire attached to a rod

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    Rod Tension Wire
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Homework Help Overview

The problem involves a rod hinged to a wall and supported by a wire, with a block suspended from the rod. The context includes analyzing the forces and torques acting on the system to determine the maximum distance the block can be suspended without exceeding the wire's tension limit.

Discussion Character

  • Exploratory, Assumption checking, Problem interpretation

Approaches and Questions Raised

  • Participants discuss the need for a diagram to clarify the setup and the attachment points of the wire. There are suggestions to use torque equations to relate the forces acting on the rod and the block. Questions arise regarding the formulation of the torque equations and the specific distances involved.

Discussion Status

The discussion is ongoing, with participants exploring different aspects of the problem. Some have provided guidance on using torque to analyze the situation, while others are seeking clarification on the setup and specific calculations. There is no explicit consensus yet, but productive lines of reasoning are being developed.

Contextual Notes

Participants note the importance of the angles involved and the maximum tension limit of the wire, which is central to the problem. The need for a visual representation of the setup is also highlighted as a constraint in understanding the problem fully.

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Homework Statement



A 7.1 kg rod of 1.00 m in length is hinged to a vertical wall and supported by a thin wire. The wire and rod each make angles of 45° with the vertical. When a 10.0 kg block is suspended from the midpoint of the rod, the tension T in the supporting wire is 59 N. If the wire will break when the tension exceed 86 N, what is the maximum distance from the hinge at which the block can be suspended?

Homework Equations


Equilibrium equations


The Attempt at a Solution


?
 
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you need to provide the figure
i can't figure out there is the wire attached to ... vertical of horizontal wall
 
oh, right. sorry. here is the image.
 

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i recommend using rotation ...

torque due to weight = torque due to wire

find it in terms of distance of 10kg from hinged point
and put max tension as 86N
 
what would the equation for torque due to weight be in this case?
 
attachment.php?attachmentid=33929&stc=1&d=1301782204.png


find the distances and put values ... torque due to weight of rod + torque due to weight of block = torque due to tension

and in this case T would be ____ ??

remember mag of torque is force x perpendicular distance b/w line of force and point about which you are finding force
 

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