Find the magnitude of the vector .
Answer and explanation
Correct answer: C. 9
- Step 1: The magnitude of a 3-dimensional vector is given by .
- Step 2: Substitute components , , and : .
- Step 3: Compute the square root: .
Answer
9.
Why not the others: The other values (10, 13, 32) arise from summing vector components linearly without squaring, or forgetting to take the square root of the sum.
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