At  $t=0$, a source of sonic oscillations  $S$ and an observer  $O$ start moving along $x$  and $y$  axis with 5 m/s and 10 m/s. The figure shows their positions at $t=0$ . If frequency of source is 1000 Hz. The frequency of signals received by the observer after 5 seconds approximately is  $\frac{1030}{y}\text{Hz}$. Find   to the nearest integer  $({\text{V}}_{\text{sound}}=330\text{\hspace{0.17em}\hspace{0.17em}m/s})$