A railroad bumper is designed as a spring in parallel with a viscous damper. What isthe bumper's damping coefficient such that the system has a damping ratio of 1.25when the bumper is engaged by a 20,000-kg railroad car and has a stiffness of 2 x10^3 N/m?In a moment the railroad car travels on a speed of 20 m/s when it engages thebumper. What is the maximum deflection of the bumper?Another empty railroad car has a mass of only 4500 kg. What are the naturalfrequency and a damping ratio of a system with the when engaged by an emptyrailroad car?

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Answered: A railroad bumper is designed as a…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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