06-1 Physics I Class 06 Uniform Circular Motion. 06-2 Newton’s Second Law - Yet Another Review!

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Presentation transcript:

06-1 Physics I Class 06 Uniform Circular Motion

06-2 Newton’s Second Law - Yet Another Review!

06-3 Important Facts About Velocity and Acceleration Vectors

06-4 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.

06-5 Uniform Circular Motion

06-6 What is the Direction of Acceleration?

06-7 Centripetal Force

06-8 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?

06-9 Using Newton’s Second Law to Solve Problems - Review

06-10 Case A: Rock at the Top of the Circle

06-11 Case B: Rock at the Bottom of the Circle

06-12 Normal Force - A Concept We Will Use in Today’s Activity

06-13 Discussion Swinging a Water Bucket Overhead

06-14 Class #6 Problems of the Day

06-15 Answer to Problem 1 for Class #6

06-16 Class #6 Problems of the Day

06-17 Answer to Problem 2 for Class #6

06-18 Class #6 Take-Away Concepts

06-19 Activity #6 Ferris Wheel Thrill Ride

06-20 Class #6 Optional Material “Centrifugal” Force?

06-21 Accelerated Frames of Reference

06-22 The Inertial Forces