Particle in a Uniform Magnetic Field

A positively charged particle, q > 0, of mass m is located at the origin with initial velocity given by + 'UzulE i-u: rZii'zu+i"zuZUs-n where \"own > D is the component of the velocity in the xdirection and 'uzn > [J is the component of the velocity in the z direction. The particle is moving in a magnetic field which is constant in both magnitude and direction: o A B=Buk Express your answers to the following questions in terms of if, m. B_0 for B\". vx_0 for \"Ufa, vz_0 for oz\