I have explain basic 3 major differences between speed and velocity. These are
- Speed is scalar quantity i.e. it has only magnitude. and Velocity is vector quantity i.e. it has both magnitude as well as direction.
- Speed is the distance travelled by an object in a given interval of time and Velocity is the displacement of an object in a given interval of time.
- Formula to calculate Speed i.e Speed = distance / time and Formula to calculate Velocity i.e. Velocity = displacement / time.
Also check : When will you say a body is in Uniform acceleration and non-uniform acceleration?