09_24_Forces - 9/24 Forces / Text: Begin Chapter 4 / Exam...

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9/24 Forces / Text: Begin Chapter 4 / Exam I…Still grading…and grading…and… / I accept the blame for this experience, the test was too hard. However, I have a plan! / HW “9/24 Forces and Acceleration” due Thursday 9/27 / Lab: “Forces and Acceleration” / Study Buddies and Tutoring (peer instructors)
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Road Map of this course Newton’s Laws: Connect motion (v, a, etc.) to a cause, i.e. “Forces” Ch 4 In theory, Newton’s Laws solve everything and anything. Ch 5 is Circular Motion In practice, Newton’s Laws get “messy” if the forces are sudden or change as time passes. Enter the concepts of Energy and Momentum which permit prediction of motion without the “mess.” Ch 6 and 7 Develop Newton’s Laws for rotating objects. Ch 8 and 9
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Tool Box and Language Free Body Diagrams: A picture of all the forces acting “on” a single object, none on other objects. A Free Body Diagram also identifies the object the force is caused “by.” (All forces have a real object as the cause) Example: This is the “Weight force” caused “by” the earth “on” Larry.
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09_24_Forces - 9/24 Forces / Text: Begin Chapter 4 / Exam...

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