an albatrossglides at a constant 15 m/s horizontallyabove level ground, moving ina vertical plane that contains theSun. It glides toward a wall of heighth = 2.0 m, which it will just barelyclear. At that time of day, the angleof the Sun relative to the ground isu = 30. At what speed does theshadow of the albatross move (a) across the level ground andthen (b) up the wall? Suppose that later a hawk happens to glidealong the same path, also at 15 m/s.You see that when its shadowreaches the wall, the speed of the shadow noticeably increases.(c) Is the Sun now higher or lower in the sky than when the albatrossflew by earlier? (d) If the speed of the hawk’s shadow onthe wall is 45 m/s, what is the angle u of the Sun just then?
an albatrossglides at a constant 15 m/s horizontallyabove level ground, moving ina vertical plane that contains theSun. It glides toward a wall of heighth = 2.0 m, which it will just barelyclear. At that time of day, the angleof the Sun relative to the ground isu = 30. At what speed does theshadow of the albatross move (a) across the level ground andthen (b) up the wall? Suppose that later a hawk happens to glidealong the same path, also at 15 m/s.You see that when its shadowreaches the wall, the speed of the shadow noticeably increases.(c) Is the Sun now higher or lower in the sky than when the albatrossflew by earlier? (d) If the speed of the hawk’s shadow onthe wall is 45 m/s, what is the angle u of the Sun just then?
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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an albatross
glides at a constant 15 m/s horizontally
above level ground, moving in
a vertical plane that contains the
Sun. It glides toward a wall of height
h = 2.0 m, which it will just barely
clear. At that time of day, the angle
of the Sun relative to the ground is
u = 30. At what speed does the
shadow of the albatross move (a) across the level ground and
then (b) up the wall? Suppose that later a hawk happens to glide
along the same path, also at 15 m/s.You see that when its shadow
reaches the wall, the speed of the shadow noticeably increases.
(c) Is the Sun now higher or lower in the sky than when the albatross
flew by earlier? (d) If the speed of the hawk’s shadow on
the wall is 45 m/s, what is the angle u of the Sun just then?
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