Question

what is scelar and vector

Answer 1

A scalar quantity is a one dimensional measurement of a quantity, like temperature, or mass. A vector has more than one number associated with it. A simple example is velocity. It has a magnitude, called speed, as well as a direction, like North or Southwest or 10 degrees west of North.

Answer 2

Scalars have magnitude only. Temperature, speed, mass, and volume are examples of scalars.

Vectors have magnitude and direction. The magnitude of $\vec{v}$ is written |$\vec{v}$| $\equiv$ v . Position, displacement, velocity, acceleration and force are examples of vector quantities. Vectors have the following properties:

Vectors are equal if they have the same magnitude and direction.

2.

Vectors must have the same units in order for them to be added or subtracted.

3.

The negative of a vector has the same magnitude but opposite direction.

4.