Conceptual Physics (12th Edition)

Published by Addison-Wesley
ISBN 10: 0321909100
ISBN 13: 978-0-32190-910-7

Chapter 10 - Think and Rank: 35

Answer

a. B, C, A, D. b. B, D, A, C. c. A=B=C=D.

Work Step by Step

a. The vertical velocity component is the initial speed multiplied by the sine of the initial launch angle. These 4 vertical components, in the order ABCD, are $6 \frac{m}{s}, 16 \frac{m}{s}, 7 \frac{m}{s},$ and 5 $\frac{m}{s}$. b. The horizontal velocity component is the initial speed multiplied by the cosine of the initial launch angle. These 4 horizontal components, in the order ABCD, are $8 \frac{m}{s}, 12 \frac{m}{s}, 7 \frac{m}{s},$ and $8.7 \frac{m}{s}$. c. The acceleration is g, directed downward, for all of them.
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