d+(-01)(-10)-(-2) (17 S+.866-3.3641 K = 81.80 = 75.70 8=163.5 Express the result as a Cartesian vector. Exercise 4: If the two forces F₁ = {100i-120j + 75k } lb and F₂ = (-200i+250j+100k) lb act at A, determine the resultant moment produce by these forces about point 0. 3 t