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Problem 2.173: Coulomb Damping A mass of 20 kg is suspended from a spring of stiffness 10,000 N/m. The vertical motion of the mass is subjected to Coulomb friction of magnitude 50 N. If the spring is initially displaced downward by 5 cm from its static equilibrium position, determine (a) the number of half cycles elapsed before the mass comes to rest, (b) the time elapsed before the mass comes to rest, and (c) the final extension of the spring.

Problem 2.173: Coulomb Damping A mass of 20 kg is suspended from a spring of stiffness 10,000 N/m. The vertical motion of the mass is subjected to Coulomb friction of magnitude 50 N. If the spring is initially displaced downward by 5 cm from its static equilibrium position, determine (a) the number of half cycles elapsed before the mass comes to rest, (b) the time elapsed before the mass comes to rest, and (c) the final extension of the spring.

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
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**Problem 2.173: Coulomb Damping** A mass of 20 kg is suspended from a spring of stiffness 10,000 N/m. The vertical motion of the mass is subjected to Coulomb friction of magnitude 50 N. If the spring is initially displaced downward by 5 cm from its static equilibrium position, determine: (a) the number of half cycles elapsed before the mass comes to rest, (b) the time elapsed before the mass comes to rest, and (c) the final extension of the spring.
Transcribed Image Text:**Problem 2.173: Coulomb Damping** A mass of 20 kg is suspended from a spring of stiffness 10,000 N/m. The vertical motion of the mass is subjected to Coulomb friction of magnitude 50 N. If the spring is initially displaced downward by 5 cm from its static equilibrium position, determine: (a) the number of half cycles elapsed before the mass comes to rest, (b) the time elapsed before the mass comes to rest, and (c) the final extension of the spring.
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