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Published byAustyn Coby Modified over 2 years ago

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12-1 Physics I Class 12 Uniform Circular Motion

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12-2 Newton’s Second Law - Yet Another Review!

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12-3 Uniform Circular Motion

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12-4 Acceleration in Circular Motion 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.

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12-5 Important Facts About Velocity and Acceleration Vectors

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12-6 What is the Direction of Acceleration?

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12-7 “Centripetal Force” “Centrifugal Force”

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12-8 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?

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12-9 Using Newton’s Second Law to Solve Problems - Review

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12-10 Case A: Rock at the Top of the Circle

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12-11 Case B: Rock at the Bottom of the Circle

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12-12 Normal Force - A Concept We Will Use in Today’s Activity

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12-13 Class #12 Take-Away Concepts

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12-14 Class #12 Problems of the Day

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12-15 Class #12 Problems of the Day

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12-16 Activity #12 Ferris Wheel Thrill Ride

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

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12-18 Accelerated Frames of Reference

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12-19 The Inertial Forces

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12-20 Discussion Swinging a Water Bucket Overhead

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