Answer the following questions for projectile motion on level ground assuming negligible air resistance (the initial angle beingneither 0º nor 90º ): (a) Is the acceleration ever zero? (b) Is the acceleration ever in the same direction as a component ofvelocity? (c) Is the acceleration ever opposite in direction to a component of velocity?

Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter3: Motion In Two Dimensions
Section: Chapter Questions
Problem 9P
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Answer the following questions for projectile motion on level ground assuming negligible air resistance (the initial angle being
neither 0º nor 90º ): (a) Is the acceleration ever zero? (b) Is the acceleration ever in the same direction as a component of
velocity? (c) Is the acceleration ever opposite in direction to a component of velocity?

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