A uniform magnetic field of $0.50 \mathrm{~T}$ is directed to the north. At some instant, a particle with charge $+0.020 \mu \mathrm{C}$ is moving with velocity $2.0 \mathrm{~m} / \mathrm{s}$ in a direction $30^{\circ}$ north of east. (a) What is the magnitude of the magnetic force on the charged particle? (b) What is the direction of the magnetic force?