A freeway has the following relationship: S = 75.4e- where S' is in mph, for D pc/mi/ln (D<145), b is a positive constant in In-mi/pc. What is the free-flow speed Sf in mph? Write the expression of V = f(D). Leave b in the equation. If the capacity Vm = 2500 pc/h/ln happens at Do 45 pc/mi/ln, what is the value of b? =
A freeway has the following relationship: S = 75.4e- where S' is in mph, for D pc/mi/ln (D<145), b is a positive constant in In-mi/pc. What is the free-flow speed Sf in mph? Write the expression of V = f(D). Leave b in the equation. If the capacity Vm = 2500 pc/h/ln happens at Do 45 pc/mi/ln, what is the value of b? =
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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![A freeway has the following relationship: S = 75.4e-bD where S is in mph, for D is in
pc/mi/ln (D<145), b is a positive constant in In-mi/pc. What is the free-flow speed S, in mph?
Write the expression of V = f(D). Leave b in the equation. If the capacity Vm = 2500 pc/h/In
happens at Do = 45 pc/mi/ln, what is the value of b?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fbb7f1ce8-2552-49b5-ba1d-534a58de11ae%2F6457fb94-c72d-49e1-b8a9-70e10a46c046%2Fxx47oud_processed.jpeg&w=3840&q=75)
Transcribed Image Text:A freeway has the following relationship: S = 75.4e-bD where S is in mph, for D is in
pc/mi/ln (D<145), b is a positive constant in In-mi/pc. What is the free-flow speed S, in mph?
Write the expression of V = f(D). Leave b in the equation. If the capacity Vm = 2500 pc/h/In
happens at Do = 45 pc/mi/ln, what is the value of b?
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