Answer to Question #25019 in Mechanics | Relativity for Lakiya

Question

How does a vector quantity differ from a scalar quantity?

Answer 1

In a simple words vector is a mathematical quantity with both a magnitude and direction, and scalar is a quantity which can be described by a single number and has no direction, while vector in 3d space is described by three numbers. Examples of vector quantities: velocity, displacement, force, momentum. Examples of scalar quantities: mass, volume, density, time, length.