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two forces, one of 18.4 pounds and the outer 13.1 pounds, act upon the same onject. the angle between these forces is 16.5°. find the magnitude of the resultant force

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Fr = 18.4[0o] + 13.1[16.5o].

X = 18.4 + 13.1*Cos16.5 =
Y = 13.1*sin16.5 =

Fr = Sqrt(x^2+Y^2).

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