9 Two forces, of magnitudes 2 N and 5 N , act on a particle in the directions shown in the diagram below.
\includegraphics[max width=\textwidth, alt={}, center]{77c6e712-be31-47fb-baa0-4931b7defbf4-07_323_755_548_283} \section*{(a) Calculate the magnitude of the resultant force on the particle.
(b) Calculate the angle between this resultant force and the force of magnitude 5 N .}