Repeat Problem 1.29 using as coordinates (x_{1}), which is the displacement of the mass center, and (x_{2}),

Question:

Repeat Problem 1.29 using as coordinates $x_{1}$, which is the displacement of the mass center, and $x_{2}$, which is the displacement of the point of attachment of the spring that is a distance $3 L / 4$ from the left end.

Data From Problem 1.29:

Let $x$ be the displacement of the left end of the bar of the system in Figure P1.29. Let $\theta$ represent the clockwise angular rotation of the bar.

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