Answer
$f=1.6Hz$
Work Step by Step
We know that $\omega=2{\pi}f$.
This can be rewritten as;
$f=\frac{\omega}{2\pi}$
From the given equation, we find that
$\omega=10\frac{rad}{s}$
Thus,
$f=\frac{10}{2\pi}=1.6Hz$
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