Question

What are the best definitions of scalars and vectors

Answer 1

-A Scalar quantity only has a magnitude.
-A Vector quantity has a magnitude as well as a direction.

Answer 2

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A scalar is a quantity that is fully described by a magnitude only. It is described by just a single number. Some examples of scalar quantities include speed, volume, mass, temperature, power, energy, and time. 

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A vector is a quantity that has both a magnitude and a direction. Vector quantities are important in the study of motion. Some examples of vector quantities include force, velocity, acceleration, displacement, and momentum. 

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I hope, this will help you

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