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Home > PC3 > Chapter 9 > Lesson 9.1.2 > Problem 9-42

9-42.

Let , , and .

  1. What is if .

  2. What are the magnitude and direction of ?

    Sketch vector . Use the Pythagorean Theorem to determine the magnitude.
    Use inverse tangent to determine the direction, paying attention to the quadrant when deciding on your answer.