19. Ata given moment, a plane passes directly above a radar station at an altitude of 6 km. the plane and the station changing half a minute later? (b) How fast is the distance between the plane and the station changing when the plane passes directly above the station? (a) The plane's speed is 800 km/h. How fast is the distance between

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Question 19

/ DIFFERENTIATION
19, At a given moment, a plane passes directly above a radar station a
an altitude of 6 km.
26.4
5mr lalder sliding down a wall, as in
(a) The plane's speed is 800 km/h, How fast is the distance between
the plane and the station changing half a minute later?
(b) How fast is the distance between the plane and the station changing
when the plane passes directly above the station?
the
Aright of the ladder's top at time
(B)
al to the ladder's bottom.
ds way from the wall at a rate of 0,8 m/s,
f the ladder at r 2s if the bottom is 1.5 m
ding down the wall at a rate of I.2 m/s.
the radar station and the plane makes with the horizontal. How fast is
0 changing 12 min after the plane passes over the radar station?
20. In the setting of Exercise 19, let 0 be the angle that the line through
he top slides down the wall at a rate of
11%32s,
21. A hot air balloon rising vertically is tracked by an observer located
4km from the lift-off
and x at the moment when the
(a) The plane's speed is 800 km/h. How fast is the distance between
Transcribed Image Text:/ DIFFERENTIATION 19, At a given moment, a plane passes directly above a radar station a an altitude of 6 km. 26.4 5mr lalder sliding down a wall, as in (a) The plane's speed is 800 km/h, How fast is the distance between the plane and the station changing half a minute later? (b) How fast is the distance between the plane and the station changing when the plane passes directly above the station? the Aright of the ladder's top at time (B) al to the ladder's bottom. ds way from the wall at a rate of 0,8 m/s, f the ladder at r 2s if the bottom is 1.5 m ding down the wall at a rate of I.2 m/s. the radar station and the plane makes with the horizontal. How fast is 0 changing 12 min after the plane passes over the radar station? 20. In the setting of Exercise 19, let 0 be the angle that the line through he top slides down the wall at a rate of 11%32s, 21. A hot air balloon rising vertically is tracked by an observer located 4km from the lift-off and x at the moment when the (a) The plane's speed is 800 km/h. How fast is the distance between
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