Question

what is velocity and define

Answer 1

Hey mate here's the answer

Velocity is nothing but speed of something in a given direction.

Answer 2

the speed of something in a given direction is called velocity...
Velocity is a vector expression of the displacement that an object or particle undergoes with respect to time . The standard unit of velocity magnitude (also known as speed ) is the meter per second (m/s). Alternatively, the centimeter per second (cm/s) can be used to express velocity magnitude....

hope this helps and please mark my answer as brainliest...