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Mastering Circular Motion: Newton's 2nd Law and Forces

In this review, delve into the intricacies of uniform circular motion, acceleration, and centripetal forces. Learn about velocity and acceleration vectors, the direction of acceleration, and the concept of centripetal and centrifugal forces. Explore practical examples such as a rock twirled on a string to understand how to apply Newton's Second Law to solve problems in different cases. Gain insights into normal force and accelerated frames of reference. Engage with interactive activities like swinging a water bucket overhead to deepen your understanding of these fundamental concepts.

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Mastering Circular Motion: Newton's 2nd Law and Forces

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  1. Physics IClass 12 Uniform Circular Motion

  2. Newton’s Second Law -Yet Another Review!

  3. Uniform Circular Motion

  4. When an object travels in a circle, its velocity is constantly changing (in direction at least). That means the object has a non-zero acceleration even if it moves at constant speed. Acceleration in Circular Motion

  5. Important Facts AboutVelocity and Acceleration Vectors

  6. What is the Direction of Acceleration?

  7. “Centripetal Force”“Centrifugal Force”

  8. Example:A Rock on a String Twirl a 1 kg rock attached to a string in a 1 m radius vertical circle. The speed is 4 m/sec. What forces act on the rock and what are the directions of those forces?

  9. Using Newton’s Second Law to Solve Problems - Review

  10. Case A:Rock at the Top of the Circle

  11. Case B:Rock at the Bottom of the Circle

  12. Normal Force - A ConceptWe Will Use in Today’s Activity

  13. Class #12Take-Away Concepts

  14. Class #12Problems of the Day

  15. Class #12Problems of the Day

  16. Activity #12Ferris Wheel Thrill Ride

  17. Class #12 Optional Material“Centrifugal” Force?

  18. Accelerated Frames of Reference

  19. The Inertial Forces

  20. DiscussionSwinging a Water Bucket Overhead

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