A positron (q = +e) moves at 5.0 107 m/s in a magnetic field of magnitude

Question:

A positron (q = +e) moves at 5.0 × 107 m/s in a magnetic field of magnitude 0.47 T. The magnetic force on the positron has magnitude 2.3 × 10−12 N.
(a) What is the component of the positron's velocity perpendicular to the magnetic field? (b) What is the component of the positron's velocity parallel to the magnetic field?
(c) What is the angle between the velocity and the field?