Given that the absolute values of the three forces F1, F2 and F3 are equal, all = 1, and the sum of the three forces is 0, what is the absolute value of F1-F2?

If the three forces add up to 0, the three forces can form a triangle according to the vector, and the absolute values of F1, F2 and F3 are equal, then this triangle is an equilateral triangle with edge 1, F1-F2 = √ 3

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