How can I calculate the angular frequency with given values?

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?
 
To solve this, I first used the units to work out that a= m* a/m, i.e. t=z/λ. This would allow you to determine the time duration within an interval section by section and then add this to the previous ones to obtain the age of the respective layer. However, this would require a constant thickness per year for each interval. However, since this is most likely not the case, my next consideration was that the age must be the integral of a 1/λ(z) function, which I cannot model.
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