The equation of free vibrations of a system is $$\frac{{{{\text{d}}^2}{\text{x}}

Question

The equation of free vibrations of a system is $$\frac{{{{\text{d}}^2}{\text{x}}}}{{{\text{d}}{{\text{t}}^2}}} + 36{\pi ^2}{\text{x}} = 0{\text{,}}$$ its natural frequency is

Options:

A . 3Hz

B . $$3\pi {\text{Hz}}$$

C . 6Hz

D . $$6\pi {\text{Hz}}$$

Answer: Option A

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