If n^ is unit vector in direction of A→ then:
Correct answer: A. n^= A→/|A|
- A. n^= A→/|A|
- B. n^= (A.|A|)-
- C. n^= n^A→
- D. n^= A/A-
Explanation
n^= A→/|A|: This equation represents the unit vector n^ in the direction of the vector A→. To obtain n^, we divide the vector A→ by its magnitude |A|, which gives us the direction of the vector without changing its magnitude. Overall, the correct equation for the unit vector n^ in the direction of the vector A→ is n^= A→/|A|. This equation gives us the direction of the vector A→ without changing its magnitude, as the unit vector has a magnitude of 1.
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Vector addition combines directed quantities using the head-to-tail, parallelogram and component methods. Work includes finding the resultant magnitude and direction for two or more vectors, resolving vectors into perpendicular components, and distinguishing vector addition from scalar addition, where direction has no role.
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