How can I calculate the angular frequency with given values?

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Homework Help Overview

The discussion revolves around calculating angular frequency based on provided values related to a physical system involving torque, moment of inertia, and forces applied to objects positioned at specific distances from an axis. The context includes parameters such as radius, force, and mass distribution.

Discussion Character

  • Exploratory, Assumption checking, Problem interpretation

Approaches and Questions Raised

  • The original poster attempts to calculate angular frequency but expresses uncertainty about how to derive it from the given values. Participants question the distances of the masses from the axis and the relevance of the radius provided. There is also inquiry about the application point of the force and the mass of the disk.

Discussion Status

The discussion is active, with participants clarifying details and exploring the implications of the provided values. Some guidance has been offered regarding the calculation of torque, indicating a productive direction in the conversation.

Contextual Notes

There is a lack of clarity regarding the mass of the disk and how it factors into the calculations, as well as the specific application point of the force. The original poster has been advised to focus on the torque applied during the specified time frame.

borobeauty66
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Homework Statement



I'm trying to caluclate the angular freequency, given that I've only been given various values for the problem.

Radius 2.0 m, Force applied for 5 s = 94 N. 4 objects each at 90°, each weighing 19kg, and at 1.9m from the axis.

From this, I've calulated the values of the the moment of inertia, and the total torque.

I thought we may need angular frequency to get the momentum, so thought I'd start here.


Homework Equations



L = Iω

The Attempt at a Solution



Not sure how to get the frequency from the values I've been given. I know you guys don't give the answers, but tips would be helpful.
 
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Well, are the masses 1.9m or 2.0m from the axis?
 
rude man said:
Well, are the masses 1.9m or 2.0m from the axis?

The disk radius is 2.0m, the masses are at 1.9m from the axis.
 
I'm wondering what the point of giving the radius is. Did they specify any mass for the disc, or just the 4 masses?

Where is the force applied?
 
Force is applied tangently, to the rim, therefore at the 2.0 m. Ignore the mass of the disk.
 
Ah, we progress.

OK, so can you figure out how much torque is applied about the table axis during those
5 seconds?
 

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