
Elements Of Electromagnetics
7th Edition
ISBN: 9780190698614
Author: Sadiku, Matthew N. O.
Publisher: Oxford University Press
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Transcribed Image Text:1. Consider two pendulums, 1 and 2, with the same string length L, but with
different bob masses m1 and m2. They are coupled by a spring of spring
constant k, which is attached to the bobs. Find their equations of motion, for
small oscillations, solve for the modes and find their frequencies and
configurations.
2. Consider the system of three masses and four springs shown in the figure below.
Find the frequencies of the three normal modes for longitudinal oscillations. What
happens to the modes and frequencies when k1=k2? K1-3k2?
k1
k2
k2
k1
m
m
m
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