Rotational motion: rod in a tube

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SUMMARY

The discussion focuses on the dynamics of a thin rod of mass M and length L sliding within a frictionless tube, which is pivoted to rotate freely in a horizontal plane. The moment of inertia for the thin rod is given as I_{Thin Rod} = (1/12)ML². The objective is to derive the equations of motion for the rod in relation to the angle of the tube, θ, and the radial position of the rod's center, r. A diagram was requested to clarify the system's configuration, indicating the complexity of the problem.

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  • Understanding of rotational dynamics and moment of inertia
  • Familiarity with Newton's laws of motion
  • Basic knowledge of angular displacement and radial motion
  • Ability to interpret and create diagrams of physical systems
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SonOfOle
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Homework Statement


A long thin tube of negligible mass is pivoted so it may rotate freely without friction in a horizontal plane. A thin rod of mass M and length L lies in the tube and can slide without friction in the tube. ([tex]I_{Thin Rod}=\frac{1}{12}ML^{2}[/tex]).

Find the equations of motion for the thin rod in terms of the angle of the tube, [tex]\theta[/tex], and the radial position of the center of the rod, r.
 
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Could you perhaps draw a diagram of what you're asking? I'm a little confused by your description, because you could be describing a number of different systems.
 
The diagram is attached. Thanks for any help. I'm currently stumped.
 

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