APPLICATIONS OF VECTORS
Physical quantities are divided into two groups. These are:-
i) Scalar quantities
ii) Vector quantities
i) SCALAR QUANTITIES
➢ These are those quantities that have only magnitude.
Examples of scalar: - time, temperature, energy, speed, density, mass, work, distance (length, height,
width), electric current, specific heat capacity, area, volume e.t.c
ii) VECTOR QUANTITIES
➢ These are those quantities that have both magnitude and direction.
Examples of vector: - force, displacement, velocity, momentum, acceleration, pressure, deceleration
(Retardation) e.t.c
VECTOR DIAGRAMS
❖ Vector quantities can be represented using vector diagrams. An arrow that has been drawn to scale and facing a specific direction is used to represent a vector. The arrow has a head and a tail.
❖ The length of the arrow represents the magnitude of the vector while the arrow head points in the
direction of the vector.
