15. The radius r and height h of a circular cone change at a rate of 2 cm/s. How fast is the volume of the cone increasing when r = 10 and h = 20?
15. The radius r and height h of a circular cone change at a rate of 2 cm/s. How fast is the volume of the cone increasing when r = 10 and h = 20?
Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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![10. GUA conical tank (as in Example 2) has height 8 m and radius
4 m at the base. Water flows in at a rate of 3 m³/min. Determine as a
function of h, and provide a graph of this relationship.
In Exercises 11-14, refer to a 5-m ladder sliding down a wall, as in Fig-
ures 5 and 6. The variable h is the height of the ladder's top at time t, and
x is the distance from the wall to the ladder's bottom.
11. Assume the bottom slides away from the wall at a rate of 0.8 m/s. Find
the velocity of the top of the ladder at 1 = 2 s if the bottom is 1.5 m from
the wall at f = 0 s.
12. Suppose that the top is sliding down the wall at a rate of 1.2 m/s. Cal-
culate dx/dt when h = 3 m.
13. Suppose that h(0) = 4 and the top slides down the wall at a rate of
1.2 m/s. Calculate x and dx/dt at t = 2 s.
14. What is the relation between h and x at the moment when the top and
bottom of the ladder move at the same speed?
15. The radius r and height h of a circular cone change at a rate of 2 cm/s.
How fast is the volume of the cone increasing when r = 10 and h = 20?
19. At a s
altitude of
(a) The
plane an
(b) Ho
when th
C
2
16. A road perpendicular to a highway leads to a farmhouse located 2 km
away (Figure 9). An automobile travels past the farmhouse at a speed of
80 km/h. How fast is the distance between the automobile and the farm-
house increasing when the automobile is 6 km past the intersection of the
highway and the road?
80 km/h
20. In
the ra
chang
21.
4 k
obs
of
23
a
1](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fd3f7c47f-f942-4013-9970-37881347efaf%2F10835670-db71-45f7-8697-064d4ec9406f%2F3j502hf_processed.jpeg&w=3840&q=75)
Transcribed Image Text:10. GUA conical tank (as in Example 2) has height 8 m and radius
4 m at the base. Water flows in at a rate of 3 m³/min. Determine as a
function of h, and provide a graph of this relationship.
In Exercises 11-14, refer to a 5-m ladder sliding down a wall, as in Fig-
ures 5 and 6. The variable h is the height of the ladder's top at time t, and
x is the distance from the wall to the ladder's bottom.
11. Assume the bottom slides away from the wall at a rate of 0.8 m/s. Find
the velocity of the top of the ladder at 1 = 2 s if the bottom is 1.5 m from
the wall at f = 0 s.
12. Suppose that the top is sliding down the wall at a rate of 1.2 m/s. Cal-
culate dx/dt when h = 3 m.
13. Suppose that h(0) = 4 and the top slides down the wall at a rate of
1.2 m/s. Calculate x and dx/dt at t = 2 s.
14. What is the relation between h and x at the moment when the top and
bottom of the ladder move at the same speed?
15. The radius r and height h of a circular cone change at a rate of 2 cm/s.
How fast is the volume of the cone increasing when r = 10 and h = 20?
19. At a s
altitude of
(a) The
plane an
(b) Ho
when th
C
2
16. A road perpendicular to a highway leads to a farmhouse located 2 km
away (Figure 9). An automobile travels past the farmhouse at a speed of
80 km/h. How fast is the distance between the automobile and the farm-
house increasing when the automobile is 6 km past the intersection of the
highway and the road?
80 km/h
20. In
the ra
chang
21.
4 k
obs
of
23
a
1
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