Transcription of Chapter 3: Solutions of Homework Problems …
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Chapter 3: Solutions of Homework Problems …
Chapter 3: Solutions of Homework Problems Vectors in physics . 12. Picture the problem : The given vector components correspond to the vector r as drawn at y right. 14 m x . (a) Use the inverse tangent function to find the tan 1. 34 or 34 below m distance angle : 14 m . r the +x axis 14 m m . 2 2. (b) Use the Pythagorean Theorem to r rx2 ry2 .. determine the magnitude of r : r 17 m 2 . (c) If both rx and ry are doubled, the direction tan 1 34 . 14 m 2 . will remain the same but the magnitude will 28 m 19 m 34 m 2 2. double: r .. 15. Picture the problem : The two vectors A (length 50 units) and B (length 120 units) are drawn y at right.. A. x Solution: 1. (a) Find Bx: Bx 120 units cos 70 41 units 70 .. 2. Since the vector A points entirely in the x direction, we can see that Ax = 50 units and that.
3 – 1 Chapter 3: Solutions of Homework Problems Vectors in Physics 12. as drawn at Picture the Problem: The given vector components correspond to the vector r & right.
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