Скачать или смотреть Understanding Velocity Vectors and Components | Physics - Kinematics

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In this video we'll learn about velocity vectors in 1D and 2D motion. First we'll talk about velocity vectors and what the x and y components of the velocity really mean, and how to think about negative components. Then we'll learn how to find the components, magnitude and angle of a velocity vector. Finally, we'll look at some example problems to illustrate how the x and y motions are independent of each other.

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0:00 Intro
1:02 Video setup: constant velocity
2:26 Instantaneous velocity vectors
5:47 2D velocity vectors and components
8:07 Understanding x and y velocity components
11:17 Positive and negative components
14:17 Example: finding magnitude and angle
20:36 Key concept: x and y motions are independent
23:08 Example: boat crossing a river
27:35 Summary

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