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s.g.g
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Homework Statement
I have 3 masses in 1-D connected by two springs. A driving force is exerted on the first mass and i need to derive the equation of motion of the last mass. I have worked out the Lagrangian to determine the equations of motion but cannot solve for z.
Homework Equations
The equations are
d^2(x)/dt^2 = A(y + B*cos(omega*t) - x)
d^2(y)/dt^2 = A(z+x-2y)
d^2(x)/dt^2 = A(y-z)
x,y,and z are the positions of the masses in 1-D and A,B are constants
The Attempt at a Solution
I tried general solutions of x= Csin(kt) +Dcos(kt) ect and also x= Ce^(ikt) but could not work it through.
Where am i supposed to start?