3
QuizMultiple Choice

Vector Addition and Subtraction

Question 3 • NC-Math 4 CR

Let u = ⟨–2, 6⟩, v = ⟨3, 2⟩, and w = ⟨–1, 4⟩. What is the magnitude and direction angle of 2(u + v) – 3w?

Answer
A
2.8; θ = 45.0°
B
6.4; θ = 38.7°
C
28.0; θ = 92.0°
D
41.0; θ = 51.3°
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