Speed is defined as the distance traveled per unit time. It is a scalar quantity as it can be described by the magnitude alone.
Velocity is defined as the distance per unit time in a given direction. It is a vector quantity as both magnitude and direction are required to describe it.
For two people to have same speed and velocity, they both should have same magnitude and should move in the same direction.
Examples include carbonated water (i.e. soda water); honey; sugar syrup (used in confectionery); supersaturated drug delivery systems. "SDDS"; and sodium acetate solutions prepared from 160 g NaOAc and 30 mL water.
