7B-W11 Lecture 9

# 7B-W11 Lecture 9 - Physics 7B Sections A B C D Professor...

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Physics 7B Sections A, B, C & D Professor Lawrence B. Coleman 1 Lecture 9 – Motion and Forces & Newton’s Laws Physics 7B Winter 2011 - Lecture 9 Quote of the Week: “Happy are they who get to know the reasons for things.” - Virgil

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Physics 7B Winter 2011 - Lecture 9 2 Announcements
Physics 7B Winter 2011 - Lecture 9 3 Describing Place & Motion

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Physics 7B Winter 2011 - Lecture 9 4 Describing Place & Motion
Physics 7B Winter 2011 - Lecture 9 5 Describing Place & Motion Reading Graphs & Slopes

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Physics 7B Winter 2011 - Lecture 9 6 YES or NO . . 1. When the velocity is zero, can the acceleration be non-zero?? 2. Can the velocity be in the +X direction and the acceleration be in the – X direction ?? 3. Can the speed be constant and the acceleration be non-zero? 4. Can the acceleration be perpendicular to the velocity?? Mini-Quiz
Physics 7B Winter 2011 - Lecture 9 7 YES or NO . . 1. When the velocity is zero, can the acceleration be non-zero?? Mini-Quiz

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Physics 7B Winter 2011 - Lecture 9 8 YES or NO . . 1. When the velocity is zero, can the acceleration be non-zero?? YES Toss ball into the air – top of path pendulum – ends of swing Mini-Quiz
9 YES or NO . . 2. Can the velocity be in the +X direction and the

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7B-W11 Lecture 9 - Physics 7B Sections A B C D Professor...

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