College Physics
College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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Typical backyard ants often create a network of chemical trails for guidance. Extending outward from the nest, a trail branches
(bifurcates) repeatedly, with 60° between the branches. If a roaming ant chances upon a trail, it can tell the way to the nest at any
branch point: If it is moving away from the nest, it has two choices of path requiring a small turn in its travel direction, either 30°
leftward or 30 rightward. If it is moving toward the nest, it has only one such choice. Figure shows a typical ant trail, with lettered
straight sections of 1.9 cm length and symmetric bifurcation of 60°. The angle between path w and the y axis is 30°. What are the (a)
magnitude and (b) angle (relative to the positive direction of the superimposed x axis) of an ant's displacement from the nest (find it in
the figure) if the ant enters the trail at point A? What are the (c) magnitude and (d) angle if it enters at point B?
m.
a
C
d
S
V.
(a) Number
i
7.464
Unit
(b) Number
i
90
Unit
degrees
(c) Number
i
8.63
Unit
(d) Number
48.43
Unit
degrees
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Transcribed Image Text:Typical backyard ants often create a network of chemical trails for guidance. Extending outward from the nest, a trail branches (bifurcates) repeatedly, with 60° between the branches. If a roaming ant chances upon a trail, it can tell the way to the nest at any branch point: If it is moving away from the nest, it has two choices of path requiring a small turn in its travel direction, either 30° leftward or 30 rightward. If it is moving toward the nest, it has only one such choice. Figure shows a typical ant trail, with lettered straight sections of 1.9 cm length and symmetric bifurcation of 60°. The angle between path w and the y axis is 30°. What are the (a) magnitude and (b) angle (relative to the positive direction of the superimposed x axis) of an ant's displacement from the nest (find it in the figure) if the ant enters the trail at point A? What are the (c) magnitude and (d) angle if it enters at point B? m. a C d S V. (a) Number i 7.464 Unit (b) Number i 90 Unit degrees (c) Number i 8.63 Unit (d) Number 48.43 Unit degrees
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