piane is per hour. Find the rates (In radians per hour) at which the angle of elevation e is changing when the angle is e = 30°, 0 = 60°, e = 70°. mi Not drown to scule (a) 0 = 30° rad/hr (b) - 60° rad/hr

piane is per hour. Find the rates (In radians per hour) at which the angle of elevation e is changing when the angle is e = 30°, 0 = 60°, e = 70°. mi Not drown to scule (a) 0 = 30° rad/hr (b) - 60° rad/hr

Algebra and Trigonometry (MindTap Course List)

4th Edition

ISBN:9781305071742

Author:James Stewart, Lothar Redlin, Saleem Watson

Publisher:James Stewart, Lothar Redlin, Saleem Watson

Chapter5: Trigonometric Functions: Right Triangle Approach

Section5.CR: Chapter Review

Problem 3CC

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Question

An alrplane files at an altitude of y = 6 miles toward a polnt directly over an observer (see figure). The speed of the plane Is 600 miles
per hour. Find the rates (In radians per hour) at which the angle of elevation e is changing when the angle is e = 30°, 0 = 60°, and
e = 70°.
y mi
Not drawn to scale
(a)
e = 30°
rad/hr
(b)
e = 60°
rad/hr
(c)
e = 70° (Round your answer to two decimal places.)
rad/hr

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