The scalar product of two vectors L and M is defined as _
Correct answer: B. Option B
- A. Option A
- B. Option B
- C. Option C
- D. Option D
Explanation
In terms of magnitude and the angle θ between the vectors: L.M = L.M cosθ This represents the projection of one vector onto the other, scaled by the magnitudes of the vectors and the cosine of the angle between them.
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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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