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Airport runways are generally designed with a buffer zone around 300 mm long beyond the runway end, to accommodate aircraft that land too fast or too far down the runway and go off the end. Where that's not possible, airports are increasingly installing so-called Engineered Material Arresting Systems (EMAS) to prevent runaway aircraft from entering nearby roads, neighborhoods, or waterways. One such system, at New York's JFK airport, consists of a 132-mm-long bed of crushable cement blocks. What average force must this system exert on a 55-MgMg jetliner that enters the arrestor bed at 37 m/sm/s if the jet is to stop 100 mm into the bed

Airport runways are generally designed with a buffer zone around 300 mm long beyond the runway end, to accommodate aircraft that land too fast or too far down the runway and go off the end. Where that's not possible, airports are increasingly installing so-called Engineered Material Arresting Systems (EMAS) to prevent runaway aircraft from entering nearby roads, neighborhoods, or waterways. One such system, at New York's JFK airport, consists of a 132-mm-long bed of crushable cement blocks. What average force must this system exert on a 55-MgMg jetliner that enters the arrestor bed at 37 m/sm/s if the jet is to stop 100 mm into the bed

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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Airport runways are generally designed with a buffer zone around 300 mm long beyond the runway end, to accommodate aircraft that land too fast or too far down the runway and go off the end. Where that's not possible, airports are increasingly installing so-called Engineered Material Arresting Systems (EMAS) to prevent runaway aircraft from entering nearby roads, neighborhoods, or waterways. One such system, at New York's JFK airport, consists of a 132-mm-long bed of crushable cement blocks.

 

What average force must this system exert on a 55-MgMg jetliner that enters the arrestor bed at 37 m/sm/s if the jet is to stop 100 mm into the bed

Expert Solution
Step 1: Mention the given data.

Mass of jetliner, m equals 55 space Mg

Velocity, v equals 37 space bevelled straight m over straight s

Distance, d equals 100 space straight m

To find: Average force.

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