If two non-zero vector A and B are parallel to each other then A . B is equal to
Correct answer: B. AB
- A. Zero
- B. AB
- C. A+B
- D. A-B
Explanation
f two non-zero vectors A and B are parallel to each other, the dot product A.B equal to the product of their magnitudes: A.B = |A| . |B| This is because when vectors are parallel, the angle θ between them is 0 degrees, and cos 0 = 1, simplifying the dot product formula to the product of magnitudes.
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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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