Mathematical Methods for Physics and Engineering : A Comprehensive Guide

9.5 HINTS AND ANSWERS

label2

1 2 3

m M m

2 km

kM kM

(a)ω^2 =c+

d

m

(c)ω^2 =c+

2 d

M

+

d

m

Figure 9.6 The normal modes, as viewed from above, of the coupled pendu-
lums in example 9.1.