Question

explain about velocity and scalar .give example​

Answer 1

Velocity is a physical vector quantity; both magnitude and direction are needed to define it. The scalar absolute value (magnitude) of velocity is called speed, being a coherent derived unit whose quantity is measured in the SI (metric system) as metres per second (m/s) or as the SI base unit of (m⋅s−1).

Answer 2

When the distance covered in unit time is called velocity

A quantity which only have magnitude is called the scalar