## Essential University Physics: Volume 1 (4th Edition)

Published by Pearson

# Chapter 9 - Exercises and Problems - Page 172: 58

#### 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: $cos\theta = \frac{1}{2} \\ \theta =60^{\circ}$

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