the difference between speed and velocity is that
Speed is displacement (distance traveled) per unit time. Velocity is displacement (distance traveled) per unit time in a given direction. The directionality associated with velocity makes it a vector quantity, while speed is a scalar quantity. The main difference between them in everyday life is that speed is usually used. properly, but velocity is usually used Im properly. -- 30 miles per hour is a speed. -- 30 miles per hour north is a velocity. -- 30 miles per hour north and 30 miles per hour west are the same speed but different velocities.
Speed is the magnitude of velocity. Velocity is the speed of an object plus its direction. Speed is called a scalar quantity and velocity is a vector quantity. Speed of Light. The fastest possible speed in the universe is the speed of light.