Answer
In the absence of air resistance, both balls travel the same distance (see Figure 10.11).
The ball launched at $30^{\circ}$ has a smaller initial vertical velocity component, spends less time in the air, and lands first.
Conceptual Physics (12th Edition)
by Hewitt, Paul G.
Published by
Addison-Wesley
ISBN 10:
0321909100
ISBN 13:
978-0-32190-910-7
Chapter 10 - Think and Explain - Page 203-205: 49
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