## College Physics (4th Edition)

The buoy bobs up and down with a frequency of $0.33~Hz$
We can find the frequency at which the buoy bobs up and down: $\lambda~f = v$ $f = \frac{v}{\lambda}$ $f = \frac{2.5~m/s}{7.5~m}$ $f = 0.33~Hz$ The buoy bobs up and down with a frequency of $0.33~Hz$