Fundamentals of Physics Extended (10th Edition)

Published by Wiley
ISBN 10: 1-11823-072-8
ISBN 13: 978-1-11823-072-5

Chapter 4 - Motion in Two and Three Dimensions - Questions - Page 82: 6a

Answer

Point A corresponds to the landing of the fruitcake on the ground.

Work Step by Step

Initially, the velocity vector is directed above the horizontal while the acceleration vector is directed straight down. The angle $\theta$ between these two vectors is a maximum. At maximum height, the velocity vector is horizontal while the acceleration vector is directed straight down. The angle $\theta$ between these two vectors is $90^{\circ}$ Just before striking the ground, the velocity vector is directed below the horizontal while the acceleration vector is directed straight down. The angle $\theta$ between these two vectors is a minimum. Therefore, point B on the graph is the launch point, and point A on the graph is the landing point. Point A corresponds to the landing of the fruitcake on the ground.
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