To find the resultant of multiple forces using Cartesian
components and to determine the direction of this resultant from
its components. As shown, three forces act on the tip of a pole. F1
= ( -60 i + 145 j + 45 k ) N. F2 = 140 N and forms the following
angles with the x, y, and z axes, respectively: α = 55.2 ∘ , β =
65.6 ∘ , and γ = 135.2 ∘ . F3 =...