Max Rotation Rate of a Slowing Turntable

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SUMMARY

The discussion focuses on determining the maximum angular velocity (ωt^2) of a slowing turntable with radius "r" that begins to decelerate from an initial rate of ω at time t=0 and stops at time t=T. The key equation to derive involves understanding the relationship between angular velocity and time, specifically how to express ωt^2 in terms of T. Participants emphasize the importance of analyzing the slope of the curve to identify maxima and minima, which is crucial for solving the problem accurately.

PREREQUISITES
  • Understanding of angular velocity and its mathematical representation
  • Familiarity with calculus concepts, particularly maxima and minima
  • Knowledge of kinematic equations related to rotational motion
  • Basic algebra for manipulating equations
NEXT STEPS
  • Study the derivation of angular velocity equations in rotational dynamics
  • Learn about the application of calculus in physics, focusing on optimization problems
  • Explore the relationship between angular displacement and time for rotating bodies
  • Investigate the effects of deceleration on rotational motion
USEFUL FOR

Students studying physics, particularly those focusing on rotational dynamics, as well as educators looking for examples of applying calculus to real-world problems in mechanics.

Dan22
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Homework Statement



A turntable of radius "r" is spinning counterclockwise at an initial rate of ω. at t=0, its rotation rate begins to slow at a steady pace. the rotation finally stops at t=T. At what time is ωt^2 maximum. Express your answer in terms of T.
 
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As this is thehomework section the rules require you to post your attempt before asking for help. Meanwhile...

Write an equation for the curve.

What do you know about the slope of a curve at maxima and minima?
 

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