The direction of a vector in a plane is measured with respect to two straight lines which are _ to each other.
Correct answer: B. Perpendicular
- A. Parallel
- B. Perpendicular
- C. At an angle of 60o
- D. Equal
Explanation
The direction of a vector in a plane is measured with respect to two straight lines that are perpendicular to each other. These two lines form a right angle, providing a reference for defining the angle and direction of the vector in the plane.
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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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