The terms
speed and velocity
are sometimes confused although they have different meanings.
What is it?
How is it measured?
speed
Distance covered by a body per unit of time.
It is shown on the speedometer of a car, e.g.:
20 km/h
velocity
Distance covered by a body per unit of time in a determined direction and with a determined orientation.
Its is shown by the speedometer of the car and by
the situation on the road:
e.g.:
20 km/h
on the
E90
highway going
towards Madrid
The visual in context