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# Vector

A vector is a quantity which has magnitude and is also related to a definite direction.

Thus, mere numbers, mass, density, volume, temperature, distance, speed, heat, time, etc. are scalar quantities.

Whereas, displacement, velocity, acceleration, force, and the intensity of an electric field are vectors.

Every vector has three characteristics, i.e., (i) magnitude, (ii) direction, and (iii) line of support.