Two objects are moving towards each other with velocities vec$(V{)}_1$ and vec$(V{)}_2$ on a frictionless surface

$|vec(V{)}_3|=18\frac{m}{s}$ a

${}_1=40$ and ${}_2=46,$ what is the magnitude of vec$(V{)}_2$ in units of $\frac{m}{s}?$ Express your answer

vec$({)}_{{}_1}^{m_1}$vec$(V_2)$

vec$(V_3)$