Answer
$\theta =60^{\circ}$
Work Step by Step
We know that the two pieces have equal velocities and equal masses, so they form the same angle with the x-axis. We find that this angle is:
$cos\theta = \frac{1}{2} \\ \theta =60^{\circ}$
Essential University Physics: Volume 1 (3rd Edition)
by Wolfson, Richard
Published by
Pearson
ISBN 10:
0321993721
ISBN 13:
978-0-32199-372-4
Chapter 9 - Exercises and Problems - Page 165: 54
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