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ID: g9d61iym1m
Problem: Two forces act at a point: \(\mathbf{F}_1 = \{300\,\mathbf{i} + 400\,\mathbf{j}\}\,\text{N}\) and \(\mathbf{F}_2 = \{200\,\mathbf{j} + 500\,\mathbf{k}\}\,\text{N}\). Find the angle between them and use \(F_R^2 = F_1^2 + F_2^2 + 2\,\mathbf{F}_1\cdot\mathbf{F}_2\) to find the magnitude of the resultant.
Reference materials
Engineering Mechanics: Statics
Vector Mechanics for Engineers: Statics
Engineering Mechanics: Statics
Engineering Mechanics: Statics
Engineering Statics: Open and Interactive
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