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Two forces F(1) and F(2) are acting at a...

Two forces `F_(1) and F_(2)` are acting at a point, having resultant as F. If `F_(2)` is doubled F is also doubled. If `F_(2)` is reversed then also F is doubled. If `F = 16 sqrtN, F_(1) = sqrt2N and F_(2) = n` then find n

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