Physics: Principles with Applications (7th Edition)

Published by Pearson
ISBN 10: 0-32162-592-7
ISBN 13: 978-0-32162-592-2

Chapter 3 - Kinematics in Two Dimensions; Vectors - Problems: 10

Answer

a. B-A = (-53.67 units, 1.31 units) b. A-B = (53.67 units, -1.31 units)

Work Step by Step

a. Use equations 3.3a and 3.3b to find the x and y components. Vector B points at 124 degrees from the positive x-axis. Vector A = (38.85, 20.66) Vector B = (-14.82, 21.97) Take the difference by subtracting corresponding components. B-A = (-53.67 units, 1.31 units) b. Again, take the difference by subtracting corresponding components. A-B = (53.67 units, -1.31 units) The vectors are opposite, as expected.
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