FIGURE 4.1.11. k1 т k2 wwwm2 kz х1
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Derive the equations
m1x1'' = - (k1 + k2)x1 + k2x2,
m2x2'' = k2x1 - (k2 + k3)x2
for the displacements (from equilibrium) of the two
masses shown in Fig. 4.1.11.
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