A velocity selector consists of an electric field of magnitude 2470 N/C, directed vertically upward and a horizontal magnetic field which is directed south. Charged particles, traveling east at a speed of 6.50 × 103 m/s, enter the velocity selector and are capable to pass fully via devoid of being deflected. If a different particle with an electric charge of +4.00 × 10-12 C enters the velocity selector traveling east, the total force (due to the electric and magnetic fields) acting on it is 1.90 × 10-9 N, pointing directly upward. Determine the speed of the particle?