Question

what is the use of unit vector?

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Answer 1

Answer:

Vectors can be used to represent physical quantities. Most commonly in physics, vectors are used to represent displacement, velocity, and acceleration. Vectors are a combination of magnitude and direction, and are drawn as arrows.

Answer 2

Answer:

These unit vectors are commonly used to indicate direction, with a scalar coefficient providing the magnitude. A vector decomposition can then be written as a sum of unit vectors and scalar coefficients. Given a vector V , one might consider the problem of finding the vector parallel to V with unit length.

Explanation:

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