Rotational Dynamics of a Handle with a Knob on One End

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SUMMARY

The discussion focuses on the rotational dynamics of a rod with a knob at one end, specifically analyzing the velocity and acceleration at the top of the knob compared to the bottom. The key equations involved include the relationship between radius and angular velocity (ω) to determine linear velocity. The inquiry emphasizes the need to clarify whether the radius should be measured from the origin to the top of the knob or just in the x-y plane. Understanding these dynamics is crucial for accurate calculations in rotational motion.

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  • Understanding of rotational motion principles
  • Familiarity with angular velocity (ω)
  • Knowledge of linear velocity calculations
  • Basic concepts of acceleration in rotational systems
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judonight
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No responses, so let me change the question...

A rotating (in x-y plane) rod about one of it's ends.

At the other end, from the origin, is a knob with height into the z axis.

What is the velocity and acceleration at the top of the knob?

Is the velocity and acceleration at the top of the knob different than at the bottom?

Is it radius (in x-y plane, distance from origin) times omega = velocity

Or is the magnitude of radius need for origin to top of knob?

TIA!
 
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Updated question... please help, it's a simple question.
 

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