Equilibrium of Forces The forces F1 , F2, …, Fn acting at the same point P are said to be in equilibrium if the resultant force is zero, that is, if F1 + F2 + ⋯ + Fn = 0 . Find (a) the resultant forces acting at P, and (b) the additional force required (if any) for the forces to be in equilibrium.67. F1 = ⟨2, 5⟩, F2 = ⟨3, −8⟩

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