Answer
$v=31.5\frac{m}{s}$
Work Step by Step
We know that
$v=\lambda{f}$
but we also know that
$\omega=2\pi{f}$
thus $f$=$\frac{\omega}{2\pi}$
now $v=\lambda(\frac{w}{2\pi})$
putting the values, we get
$v=(1.80)(\frac{110}{2(3.14)})$
$v=31.5\frac{m}{s}$
