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Braking Distance □ General Equation (D: unit in feet): D u² 30(f±G) where, G=Grade; f = Friction Coefficient; u = speed (mph) Deceleration rate: =;where, a = Deceleration rate g u² D₂ = - 30 -±G g ■ AASHTO Recommendation, a = 11.2 ft/sec², g = 32.2 ft/sec² □ Panic stop≈ 14.8 ft/sec²

Braking Distance □ General Equation (D: unit in feet): D u² 30(f±G) where, G=Grade; f = Friction Coefficient; u = speed (mph) Deceleration rate: =;where, a = Deceleration rate g u² D₂ = - 30 -±G g ■ AASHTO Recommendation, a = 11.2 ft/sec², g = 32.2 ft/sec² □ Panic stop≈ 14.8 ft/sec²

Structural Analysis
Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Solve using the equation and notes in the second jpeg please, in ft

Braking Distance General Equation (D: unit in feet): D₂ u² 30(f±G) where, G = Grade; f = Friction Coefficient; u = speed (mph) Deceleration rate: f=;where, a = Deceleration rate g u² 30+G g ■ AASHTO Recommendation, a = 11.2 ft/sec², g = 32.2 ft/sec² Panic stop≈ 14.8 ft/sec² D₂ =
Transcribed Image Text:Braking Distance General Equation (D: unit in feet): D₂ u² 30(f±G) where, G = Grade; f = Friction Coefficient; u = speed (mph) Deceleration rate: f=;where, a = Deceleration rate g u² 30+G g ■ AASHTO Recommendation, a = 11.2 ft/sec², g = 32.2 ft/sec² Panic stop≈ 14.8 ft/sec² D₂ =
Example A motorist is traveling at 65mph intends to leave expressway using an exit ramp with a maximum speed of 35mph. At what point on the expressway should the motorist step on her brakes in order to reduce her speed to the maximum allowable speed on the ramp before entering the ramp, if this section of expressway has downgrade of 3%?
Transcribed Image Text:Example A motorist is traveling at 65mph intends to leave expressway using an exit ramp with a maximum speed of 35mph. At what point on the expressway should the motorist step on her brakes in order to reduce her speed to the maximum allowable speed on the ramp before entering the ramp, if this section of expressway has downgrade of 3%?
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