Unit vector is used to specify:
Correct answer: C. Direction of a vector
- A. Magnitude of a vector
- B. Dimension of a vector
- C. Direction of a vector
- D. Position of a vector
Explanation
C is the correct option. A unit vector is a vector with a magnitude of 1 that points in a specific direction. It is often used to specify the direction of a vector without changing its length.
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About Vectors and Equilibrium
Vectors have magnitude and direction, unlike scalars, and are combined by head-to-tail or parallelogram methods. Work covers rectangular components, equilibrium when the resultant force is zero, the scalar product for work and projections, and the vector product for torque and cross-product direction using the right-hand rule.
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