Mechanisms + Acceleration Diagram

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SUMMARY

The discussion focuses on the mechanisms of acceleration in a circular motion context, specifically regarding point A on a rotating disk. It highlights the two components of acceleration: centripetal acceleration due to angular velocity and tangential acceleration due to angular acceleration. Participants emphasize the importance of understanding the formulas for these components, referencing course notes or textbooks for clarity. Additionally, the discussion suggests that creating a resultant line for each link is essential for constructing an accurate acceleration diagram.

PREREQUISITES
  • Understanding of angular velocity and angular acceleration
  • Familiarity with centripetal acceleration concepts
  • Knowledge of vector addition in physics
  • Access to relevant course notes or textbooks on rotational dynamics
NEXT STEPS
  • Review the formulas for centripetal and tangential acceleration
  • Practice drawing acceleration diagrams for rotating systems
  • Study vector addition techniques in physics
  • Explore examples of angular motion in real-world applications
USEFUL FOR

This discussion is beneficial for physics students, educators teaching rotational dynamics, and anyone preparing for exams related to mechanics and acceleration in circular motion.

cjh200
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Studying for my exams I came across this from a previous exam. I could do part i but could not do the second part. If someone could explain how to or provide their working would be appreciated and for part i their working to compare. Thanks for the time.
 

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There are two components of the acceleration of point A. The angular velocity of the disk causes an acceleration towards the center of the circle. The angular acceleration of the disk causes an acceleration along the tangent to the circle.

Once you have the angular acceleration vector, use the same method as for the first part.

If you don't know the formulas for the components of the acceleration, check your course notes or textbook.
 
Thanks and got that sorted. Is it just a matter of drawing the resultant line for each link and then combing to make the acceleration diagram??
 

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