Which of the following will result in a scalar quantity?Group of answer choicesDot product of 2 vectorsEquilibrant of 2 vectorsResultant of 2 vectorsCross product of 2 vectors
Question
Which of the following will result in a scalar quantity?Group of answer choicesDot product of 2 vectorsEquilibrant of 2 vectorsResultant of 2 vectorsCross product of 2 vectors
Solution
The dot product of 2 vectors will result in a scalar quantity.
Here's why:
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A scalar quantity is a one dimensional measurement of a quantity, like temperature, or weight.
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A vector quantity is a measurement that refers to both the magnitude of the medium and the direction of the movement the medium has taken.
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The dot product of two vectors is a type of multiplication that involves two vectors and returns a scalar. This is also known as the scalar product.
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When you calculate the dot product of two vectors, you multiply the vectors' magnitudes, or lengths, and the cosine of the angle between them. The result is a scalar.
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On the other hand, the cross product of two vectors results in another vector, not a scalar. The resultant and equilibrant of two vectors are also vectors, not scalars.
So, the dot product of 2 vectors is the correct answer.
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