2. A ladder 10 m long is leaning against a vertical wall. If the bottom of the towards the wall at ladder is pushed horizontally m/sec, how fast is the top of the ladder sliding up the wall when the bottom of the ladder is 6 m from the wall?

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.6: The Inverse Trigonometric Functions
Problem 74E
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Answer #2
ly over a point A
on the ground with a velocity of 550 mi/hr. Twenty
five miles away from point A on the ground, there
is a photographer video-taping the launch. At what
rate is the angle of elevation of the camera changing,
when the rocket achieves an altitude of 25 miles?
2. A ladder 10 m long is leaning against a vertical wall.
If the bottom of the ladder is pushed horizontally
towards the wall at m/sec, how fast is the top of
the ladder sliding up the wall when the bottom of
the ladder is 6 m from the wall?
A girl starting at 11 A.M., travels cast at 4 kin/hr
while a boy, starting at noon from the same point,
travels north at 6 km/hr How fast are they
eparating at 3 P.M.
Transcribed Image Text:ly over a point A on the ground with a velocity of 550 mi/hr. Twenty five miles away from point A on the ground, there is a photographer video-taping the launch. At what rate is the angle of elevation of the camera changing, when the rocket achieves an altitude of 25 miles? 2. A ladder 10 m long is leaning against a vertical wall. If the bottom of the ladder is pushed horizontally towards the wall at m/sec, how fast is the top of the ladder sliding up the wall when the bottom of the ladder is 6 m from the wall? A girl starting at 11 A.M., travels cast at 4 kin/hr while a boy, starting at noon from the same point, travels north at 6 km/hr How fast are they eparating at 3 P.M.
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