### Lecture 3: Vectors

**Objectives:**In this lecture, students will learn to

- add and subtract vectors graphically
- express vectors in unit vector notation
- relate magnitude and direction of a vector to its components
- use the method of components to find sums and differences of vectors
- apply these concepts to example problems

**Lecture Notes:**

- Powerpoint: lec03.pptx
- Pdf (recommended for printing): lec03.pdf

**Videos:**

Introduction | lec03_1.mp4 | |

Vectors. Graphical addition and subtraction | lec03_2.mp4 | with captions |

Unit vectors and components | lec03_3.mp4 | with captions |

Magnitude and direction | lec03_4.mp4 | with captions |

Example: Vector in unit vector notation | lec03_5.mp4 | with captions |

Addition and subtraction in components | lec03_6.mp4 | with captions |

Example: addition and subtraction in components | lec03_7.mp4 | with captions |

Example with tilted coordinate system | lec03_8.mp4 | captions under construction |

**Extras:**

Additional example for vector addition | lec03_9.mp4 |

**Homework assignment:** HW #3