## Chapter 02: Vectors and Equilibrium

Notes of Chapter 02: Vectors and Equilibrium of “Physics XI” for FSc Part 1 published by Punjab Textbook Board, Lahore. These notes are very helpful to prepare Physics paper of FSc Part 1 for Federal Board, Multan Board, Faisalabad Board, Sargodha Board, Gujranwala Board, DG Khan Board, Rawalpindi Board or any other board of Punjab, Pakistan.

#### Contents:

- Basic Concept of vectors.
- Vectors.
- Rectangular Coordinate system.
- Addition of Vectors.
- Resultant Vectors.
- Vectors Subtraction.
- Multiplication of a Vector with a Scalar.
- Unit Vector.
- Null Vector.
- Equal Vectors.
- Rectangular Components of a Vector.
- Determination of a Vector from its Rectangular Components.
- Position Vector.
- Vector Addition by Rectangular Components.
- Product of two Vectors.
- Vector or Cross Product.
- Torque.
- Equilibrium of Forces.
- First Condition of Equilibrium.
- Second Condition of Equilibrium.