In a 2 dimensional Cartesian system, the x-component of a vector is known, and the angle between vector and x-axis is known. Which operation

Question

In a 2 dimensional Cartesian system, the x-component of a vector is known, and the angle between vector and x-axis is known. Which operation is used to calculate the magnitude of the vector? (taken with respect to the x-component)
a. dividing by cosine
b. dividing by sine
c. multiplying by cosine
d. multiplying by sine

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Xavia 4 years 2021-09-01T00:57:13+00:00 1 Answers 96 views 0

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  1. binhan
    0
    2021-09-01T00:59:09+00:00
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    Answer:

    The correct answer is a

    Explanation:

    The cosine function is

          cos θ = ca / ​​H

    done ca is the adjacent leg (x-axis) and H is the hypotenuse (vector module)

    we clear

        H = ca / ​​cos θ

    therefore, to find the magnitude of the vector, the cathete is divided into the cosine.

    The correct answer is a

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