Is rotational Work the same as linear Work?

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Linear work, defined as F*D, and rotational work, expressed as 1/2Iω², can be equated under certain conditions. If linear work is known, it can be set equal to rotational work in specific scenarios. However, to find angular momentum, additional information such as radius or angular speed is necessary; work and force alone are insufficient. The discussion emphasizes the need for clarity in questions regarding these concepts. Understanding the relationship between linear and rotational work is crucial in physics.
Just_enough
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Linear work is F*D and rotation is 1/2Iω2, but if a problem as me rotational energy (Rotation worl = KE?) of a wheel and I have the linear work, can I just set Wrotation=Wlinear?
 
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Please correct the errors in your post, your question is not understandable as written.
 
marcusl said:
Please correct the errors in your post, your question is not understandable as written.
If I have Work1=F*D, can I use that answer to be equal to W2(=1/2Iω2)?
 
Linear and rotational work can be equated, yes.
 
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russ_watters said:
Linear and rotational work can be equated, yes.
Thanks. Now is it possible to find angular momentum from just work and force? no radius, speed, nor mass are given. If so, how?
 
Just_enough said:
Thanks. Now is it possible to find angular momentum from just work and force? no radius, speed, nor mass are given.
No, you need at least radius or angular speed.
 
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Thread 'Is energy really conserved?'

I built a device designed to brake angular velocity which seems to work based on below, i used a flexible shaft that could bow up and down so i could visually see what was happening for the prototypes. If you spin two wheels in opposite directions each with a magnitude of angular momentum L on a rigid shaft (equal magnitude opposite directions), then rotate the shaft at 90 degrees to the momentum vectors at constant angular velocity omega, then the resulting torques oppose each other...
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