Chapter 1, Problem 1.51P

The magnitudes of the three forces are $F_1=1.6\text{kN,}{F}_2=1.2\text{}\text{}\text{kN}$ and $F_3=1.0\text{kN}\text{.}$ Compute their resultant in the form (a) $\text{R}\text{=}{R}_x\text{i}+R_y\text{j}+R_z\text{k};$ and (b) $R=R\lambda .$