A point charge of Q = -2.2 C has velocity \(\bar v = \left[ {6{{\bar a}_x} + 3{{\bar a}_y} - 4{{\bar a}_z}} \right]m/s\). Find the magnitude of the force (in N) excreted on the charge if \(E = - 18{a_x} + 5{\bar a_y} - 10{\bar a_z}V/m\)