1.4 Vectors | General Physics

Vectors
Chad provides a comprehensive lesson on everything related to Vectors and the role they play in Physics. He begins with a trigonometry review covering the trigonometric identities commonly used in working with vectors. He then defines a vector and explains the difference between a scalar vs vector quantity. He then shows exactly how to split vectors down into x and y components explaining the standard of using the angle with respect to the x-axis. Finally, Chad demonstrates how to add two vectors together as follows:
1. Splitting vectors into components
2. Adding the x and y components together separately
3. Combining the x and y components using the Pythagorean theorem to find the magnitude of the resultant vector
4. Using the tangent identity to calculate the direction (angle) of the resultant vector

00:00 Lesson Introduction
00:56 Trigonometry Review
08:49 Scalar vs Vector Quantity
12:44 How to Split a Vector into X and Y Components
29:02 How to Find the Magnitude of the Resultant Vector (How to Add Vectors)
36:49 How to Find the Resultant Vector Angle (i.e. Direction)

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