## College Physics (7th Edition)

The y-component of the velocity vector is $6.32\,\mathrm{m/s}$.
Magnitude of the velocity vector is given as - $|v|=\sqrt{v_x^2+v_y^2}$. Given the magnitude and x-component, the y-component will be - $v_y=\sqrt{|v|^2-v_x^2}$ or, $v_y=\sqrt{49-9}=6.32\,\mathrm{m/s}$