Mathematics (AS & A Level) · May / June 2026 · Paper 45 · Question 3
9709
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70° 30° ° θ F N 20 N 15 N 25 N Four coplanar forces of magnitudes 20 N, 15 N, 25 N and F N act at a point in the directions shown in the diagram. Given that the four forces are in equilibrium, find the value of F and the value of i. [6]
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