Part C- Determining the displacement of a spring The cable segment attached to the spring is at an angle of o = 50.0° from the ground. The spring has a spring constant of k = 15.5 kN/m . The pulley is attached to the ceiling by rod BD that forms an angle e = 70.0° with the ceiling. The hanging mass causes a tension of 3408 N in rod BD. What is the displacement of the spring? Express your answer to three significant figures and include the appropriate units. > View Available Hint(s) HẢ + Value Units Submit Previous Answers

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)
8th Edition
ISBN:9781305387102
Author:Kreith, Frank; Manglik, Raj M.
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Chapter5: Analysis Of Convection Heat Transfer
Section: Chapter Questions
Problem 5.26P
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Part C

Review
Learning Goal:
the pulley is massless
Express your answer to three significant figures and include the appropriate units.
To draw the free-body diagram of a point particle, use the equations of
equilibrium to find unknown forces, and understand how frictionless
pulleys affect the transfer of force in a cable.
• View Available Hint(s)
As shown, a mass is suspended from a cable that wraps around a
frictionless and massless pulley. The cable connects to a linear elastic
spring. For this problem, treat the pulley as a point particle at B.
W = 1810 N
Submit
Previous Answers
(Figure 1)
v Correct
Correct answer is shown. Your answer 1813.5 N was either rounded differently or used a different number of significant figures than required for this part.
Part B showed that the weight of the hanging mass is equal to the force on the spring, W = F,. This answer is expected from your instructions on pulleys. It
should have been made clear that frictionless pulleys will only redirect a force. The proof of this will be learned at a later time.
Part C - Determining the displacement of a spring
The cable segment attached to the spring is at an angle of o = 50.0° from the ground. The spring has a spring constant of k = 15.5 kN/m. The pulley is attached to
the ceiling by rod BD that forms an angle 0 = 70.0° with the ceiling. The hanging mass causes a tension of 3408 N in rod BD. What is the displacement of the
spring?
Express your answer to three significant figures and include the appropriate units.
• View Available Hint(s)
Figure
1 of 1>
HẢ
?
s =
Value
Units
D
Submit
Previous Answers
B
Part D Complete previous part(s)
Transcribed Image Text:Review Learning Goal: the pulley is massless Express your answer to three significant figures and include the appropriate units. To draw the free-body diagram of a point particle, use the equations of equilibrium to find unknown forces, and understand how frictionless pulleys affect the transfer of force in a cable. • View Available Hint(s) As shown, a mass is suspended from a cable that wraps around a frictionless and massless pulley. The cable connects to a linear elastic spring. For this problem, treat the pulley as a point particle at B. W = 1810 N Submit Previous Answers (Figure 1) v Correct Correct answer is shown. Your answer 1813.5 N was either rounded differently or used a different number of significant figures than required for this part. Part B showed that the weight of the hanging mass is equal to the force on the spring, W = F,. This answer is expected from your instructions on pulleys. It should have been made clear that frictionless pulleys will only redirect a force. The proof of this will be learned at a later time. Part C - Determining the displacement of a spring The cable segment attached to the spring is at an angle of o = 50.0° from the ground. The spring has a spring constant of k = 15.5 kN/m. The pulley is attached to the ceiling by rod BD that forms an angle 0 = 70.0° with the ceiling. The hanging mass causes a tension of 3408 N in rod BD. What is the displacement of the spring? Express your answer to three significant figures and include the appropriate units. • View Available Hint(s) Figure 1 of 1> HẢ ? s = Value Units D Submit Previous Answers B Part D Complete previous part(s)
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