Is rotational Work the same as linear Work?

AI Thread Summary
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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