Answer
There is no component of gravitational force acting along the ball’s direction of motion. Gravity does no work on the ball, and therefore does not change its kinetic energy or its speed.
Conceptual Physics (12th Edition)
by Hewitt, Paul G.
Published by
Addison-Wesley
ISBN 10:
0321909100
ISBN 13:
978-0-32190-910-7
Chapter 10 - Reading Check Questions (Comprehension) - Page 201: 12
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