Problem

Find the direction angle for the given vector. Give your answer in degrees, rounded to one decimal place.
\[
\mathbf{v}=5 \mathbf{i}+14 \mathbf{j}
\]

Answer

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Answer

Final Answer: The direction angle for the given vector is \(\boxed{70.3}\) degrees.

Steps

Step 1 :Given the vector \(\mathbf{v}=5 \mathbf{i}+14 \mathbf{j}\)

Step 2 :The direction angle of a vector can be found using the arctangent function (also known as the inverse tangent or atan). The direction angle is the angle between the vector and the positive x-axis.

Step 3 :In this case, we can use the formula atan(j/i) where i and j are the components of the vector. We need to convert the result from radians to degrees.

Step 4 :Let i = 5 and j = 14

Step 5 :Calculate the angle in radians: angle_radians = 1.2277723863741932

Step 6 :Convert the angle from radians to degrees: angle_degrees = 70.3461759419467

Step 7 :Final Answer: The direction angle for the given vector is \(\boxed{70.3}\) degrees.

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