Question regarding finding the magnitude of Torque

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  • Thread starter Thread starter Harikesh_33
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    Magnitude Torque
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Discussion Overview

The discussion revolves around finding the magnitude of torque in a system involving two masses attached to a rod that is rotating at an angle θ with respect to the vertical. The focus is on the conceptual understanding of torque in this specific setup.

Discussion Character

  • Homework-related

Main Points Raised

  • One participant asks for clarification on what is being considered as the radius vector (r) in the torque calculation.
  • Another participant describes the radius vector as the vector from the point of rotation to the mass, indicating that they have visualized this in an accompanying image.

Areas of Agreement / Disagreement

The discussion remains unresolved, as it was interrupted by moderation and did not reach a conclusion or consensus on the torque calculation.

Contextual Notes

The thread was closed for moderation due to the nature of the question being categorized as schoolwork-type, and there were issues with the format of image links provided.

Harikesh_33
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User has been reminded to post schoolwork-type questions in the Homework Help forums, and to upload images here rather than just linking to them.
TL;DR
https://imgur.com/a/JDUgrrZ

This is the question ,now there are two ways to approach this .

1)Using the formula τ=r×F .
2)Finding L and differentiating it.

Now I approached the problem with the first method .

Since the mass is moving along a circle of radius rsinθ,the centripetal force is F=mrsinθω² ....(1)

https://imgur.com/a/nZogpVO. ...(A)

Here r is the vector from the centre of rod (which is stationery ) to the mass .

Angle between r and F is 90°+θ .

Therefore Torque τ is rFsin(90+
Question regarding finding the magnitude of Torque of a system of two masses attached to a rod rotating at angle of θ degrees with respect to a vertical
 
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What are you considering r to be?

FA00FD8A-D2E0-4177-A22F-1DA48C4F3A08.jpeg

89801AFC-3C1E-4396-89C9-73AB6CAE1462.jpeg
 
The vector from point through which the rod is rotating to the mass .

I have drawn r Vector in second image .
 
Thread closed for Moderation...
 
Thread will remain closed here. @Harikesh_33 -- Please check your PMs. Schoolwork-type questions (even if for self-study) must be posted in the Homework Help forums. Also, please do not just transitory imgur links to the images -- those can disappear which makes your thread make no sense. Please use the "Attach files" link below the Edit window instead. Thank you.
 

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