o. A 3.9 m ladder is leaning against a house when its base starts to slide away (see accompanying figure). By the time the base is 3.6 m from the y(t) house, the base is moving at the rate of 1.5 m/s. a. How fast is the top of the ladder sliding down the wall then? b. At what rate is the area of the triangle formed by the ladder, wall, and ground changing then? C. At what rate is the angle between the ladder and the ground changing then? 0 3.9-m ladder x(1)
o. A 3.9 m ladder is leaning against a house when its base starts to slide away (see accompanying figure). By the time the base is 3.6 m from the y(t) house, the base is moving at the rate of 1.5 m/s. a. How fast is the top of the ladder sliding down the wall then? b. At what rate is the area of the triangle formed by the ladder, wall, and ground changing then? C. At what rate is the angle between the ladder and the ground changing then? 0 3.9-m ladder x(1)
Mathematics For Machine Technology
8th Edition
ISBN:9781337798310
Author:Peterson, John.
Publisher:Peterson, John.
Chapter21: Direct And Inverse Proportions
Section: Chapter Questions
Problem 7A: A plug gage tapers 3.10 mm along a 38.00 mm length, as shown in Figure 215. Set up a proportion and...
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Transcribed Image Text:20. A 3.9 m ladder is leaning against a house when its
base starts to slide away (see accompanying
figure). By the time the base is 3.6 m from the y(t)
house, the base is moving at the rate of 1.5 m/s.
a. How fast is the top of the ladder sliding down
the wall then?
b.
At what rate is the area of the triangle formed
by the ladder, wall, and ground changing
then?
c. At what rate is the angle 0 between the ladder
and the ground changing then?
0
3.9-m ladder
x(1)
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