A particle (q = 5.0 nC, m = 2.0 g) moves in a region where the magnetic field has components B_x = 2.0 mT, B_y = 3.0 mT, and B_z = 4.0 mT. At an instant when the speed of the particle is 5.0 km/s and the direction of its velocity is along x-axis, what are the magnitude of the magnetic force on the particle and acceleration of the particle?

(1nC = 10⁹ C, 1 g = 10⁶ g, 1mT = 10³ T, 1 km = 10³ m)