Problem #$2[10$ marks$]$

The Earth is constantly bombarded by cosmic rays, which are charged particles from outer space. Find the force $($magnitude and direction$)$ on one such cosmic ray $-$ a proton that is instantaneously moving vertically downward at $1\mathrm{.}00{10}^7\frac{m}{s}$ at a point outside the atmosphere over Vancouver, where the magnetic field dips $74\mathrm{.}0$ below the horizontal and has a magnitude of $6\mathrm{.}17{10}^{-5}T$