The direction of the vector product is given by______________?
Correct answer: B. Right-hand rule
- A. Head to tail rule
- B. Right-hand rule
- C. Left-hand rule
- D. Triangular rule
Explanation
The direction of a vector product is perpendicular to both original vectors and is found by curling the fingers of the right hand from the first vector toward the second, with the thumb giving the product direction. The left-hand rule is used in some motor-force conventions, not for the standard vector cross product. Students may choose c by confusing Fleming's left-hand rule with the right-hand rule for cross products.
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About Vector Product
The vector product, or cross product, gives a vector perpendicular to two multiplying vectors, with magnitude AB sin θ and direction set by the right-hand rule. It covers properties such as anti-commutation, area from cross products, torque and angular momentum. Unlike the dot product, its result is a vector.
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