Question

Chapter-Work energy and power
What is scalar quantity or vector quantity ???

Answer 1

Answer:

Work done is the dot product of force and displacement. Since the dot product of two quantities is always a scalar, therefore, work is a scalar physical quantity. Current refers to the one in which the direction is not taken into consideration and is described only by its magnitude. Henceforth, it is a scalar quantity.

Answer 2

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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.

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