Two known forces F1 = 3.9 N at 76 o below the +x axis and F2 = 3.9 N at 35 o above the –x axis are acting on a?
Two known forces F1 = 3.9 N at 76 o below the +x axis and F2 = 3.9 N at 35 o above the –x axis are acting on an object. (a) What is the magnitude of the third force F3 so that the acceleartion of the object is zero?
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F3 = F1 + F2 = 2*39 = 78N