A vector having an arbitrary direction and zero magnitude is called:
Correct answer: B. A null vector
- A. A unit vector
- B. A null vector
- C. Inverse of a vector
- D. None of the above
Explanation
A null vector, also known as a zero vector, is a vector whose components are all zero. It has no specific direction and is represented as 0.
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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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