If R is not zero, there should be some acceleration in the system. The knot connecting the three cords must be moving, but somehow not. Which of the following explains why the knot is at rest even if the R is not zero? I. There is a small difference between the measured angle and the actual angle between the cords that will make the system to be at rest. II. The calculations did not include the effects of friction in the pulleys, that is why R is not equal to zero. III. The varying atmospheric pressure inside the lab changes the result. IV. The use of scaling (1 cm - 1 weight) did not capture the entire first condition since the units are not in Newtons. a. I and II b. I, II, and IV c. II and III d. III and IV
If R is not zero, there should be some acceleration in the system. The knot connecting the three cords must be moving, but somehow not. Which of the following explains why the knot is at rest even if the R is not zero? I. There is a small difference between the measured angle and the actual angle between the cords that will make the system to be at rest. II. The calculations did not include the effects of friction in the pulleys, that is why R is not equal to zero. III. The varying atmospheric pressure inside the lab changes the result. IV. The use of scaling (1 cm - 1 weight) did not capture the entire first condition since the units are not in Newtons. a. I and II b. I, II, and IV c. II and III d. III and IV
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
Related questions
Question
If R is not zero, there should be some acceleration in the system. The knot connecting the three cords must be moving, but somehow not. Which of the following explains why the knot is at rest even if the R is not zero?
I. There is a small difference between the measured angle and the actual angle between the cords that will make the system to be at rest.
II. The calculations did not include the effects of friction in the pulleys, that is why R is not equal to zero.
III. The varying atmospheric pressure inside the lab changes the result.
IV. The use of scaling (1 cm - 1 weight) did not capture the entire first condition since the units are not in Newtons.
a. I and II
b. I, II, and IV
c. II and III
d. III and IV
Transcribed Image Text:4
0₁1
-3
98
180
50
130
40
20 30
180 150 140
-2
Non
60
120
70
110
80
100
hiltilte
NG=
3
90
90
2-
100 110 120 130 140
70
60
50
80
40
austur Putumin
adalah
2
20
160
10
170 180
Cmtiden
4
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 3 steps with 1 images
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.Recommended textbooks for you
Structural Analysis (10th Edition)
Civil Engineering
ISBN:
9780134610672
Author:
Russell C. Hibbeler
Publisher:
PEARSON
Principles of Foundation Engineering (MindTap Cou…
Civil Engineering
ISBN:
9781337705028
Author:
Braja M. Das, Nagaratnam Sivakugan
Publisher:
Cengage Learning
Structural Analysis (10th Edition)
Civil Engineering
ISBN:
9780134610672
Author:
Russell C. Hibbeler
Publisher:
PEARSON
Principles of Foundation Engineering (MindTap Cou…
Civil Engineering
ISBN:
9781337705028
Author:
Braja M. Das, Nagaratnam Sivakugan
Publisher:
Cengage Learning
Fundamentals of Structural Analysis
Civil Engineering
ISBN:
9780073398006
Author:
Kenneth M. Leet Emeritus, Chia-Ming Uang, Joel Lanning
Publisher:
McGraw-Hill Education
Traffic and Highway Engineering
Civil Engineering
ISBN:
9781305156241
Author:
Garber, Nicholas J.
Publisher:
Cengage Learning