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Introduction to Circular Motion and Arc Length (5:03)
Cartesian and polar coordinates are introduced and how to switch from one to the other is derived. The concept of angular displacement and arc length are demonstrated. Circumference is shown to be an arc length.
This is an AP Physics 1 topic. Content Times: 0:10 Cartesian coordinates and circular motion 1:00 Polar coordinates and circular motion 1:40 Switching between polar and Cartesian coordinates 2:18 Introduction to Angular Displacement and Arc Length 3:24 The Arc Length equation 4:13 Circumference and Arc Length 

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