Question

what are scalar or vectors​

Answer 1

The quantity is either a vector or a scalar. These two categories can be distinguished from one another by their distinct definitions: Scalars are quantities that are fully described by a magnitude (or numerical value) alone. Vectors are quantities that are fully described by both a magnitude and a direction.

Answer 2

scalar is a physical quantity which does not have specified direction and magnitude

vector is a physical quantity have specified direction and magnitude.