CHAPTER 1 : SCALARS AND VECTORS

1.1 Definitions

Scalars : A physical quantity which needs only magnitude, i.e. a number and a unit of measurement to specify its value is defined as a scalar. e.g. Mass of 2 kg, length of 20m, time interval of 5 sec etc. Thus mass, and length, time are scalars.

Vectors : A Physical quantity which needs magnitude and direction to specify its value is defined as a vector. e.g. Velocity of 285 km/hr along N-E direction, Momentum of 47 kg x m/s along 30⁰ to East of south direction. Thus velocity and momentum are vectors.

Index

Classical Mechanics
1.1 Definitions
1.2 Vector Algebra

Chapter 2