Answer
45 degrees
Work Step by Step
We know that the magnitude of the dot product uses $ cos \theta $, while the cross product uses $sin \theta$. These two expressions are only equivalent when theta is 45 or 225 degrees.
Essential University Physics: Volume 1 (4th Edition)
by Wolfson, Richard
Published by
Pearson
ISBN 10:
0-134-98855-8
ISBN 13:
978-0-13498-855-9
Chapter 11 - For Thought and Discussion - Page 206: 4
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