The rod OB rotates counterclockwise about O (Polar Coord.)

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Homework Help Overview

The problem involves a rod rotating counterclockwise about a point while a collar slides along it. The context is centered around polar coordinates and involves calculating the velocity and acceleration vectors of the collar at a specific position.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • Participants discuss the need for a diagram or detailed description of the mechanism to better understand the problem setup. There is a question regarding whether the calculations should be made with respect to an inertial or rotating coordinate system.

Discussion Status

Some participants have expressed agreement with the analysis presented, indicating a level of confidence in the approach taken. However, the discussion remains open as further clarification on the coordinate system is sought.

Contextual Notes

There is a mention of the constant angular speed and the relative speed of the collar, which may influence the calculations. The specific position of the collar is also noted, which may be relevant to the analysis.

Alexanddros81
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Homework Statement


13.25 The rod OB rotates counterclockwise about O at the constant angular speed
of 45 rev/min while the collar A slides toward B with the constant speed 0.6 m/s,
measured relative to the rod. When collar A is in the position R = 0.24m, θ = 0, calculate
(a) its velocity vector; and (b) its acceleration vector.

Homework Equations

The Attempt at a Solution


Pytels_Dynamics065.jpg


Is this correct?
 
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Please supply either a diagram or a detailed description of the mechanism.
 
Alexanddros81 said:
When collar A is in the position R = 0.24m, θ = 0, calculate
(a) its velocity vector; and (b) its acceleration vector.
With respect to an inertial or a rotating coordinate system?
 
P13_25-P13_27.jpg
 

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