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engineering mechanics force vectors
1. Determine the magnitude and direction of F so that this force has components of 40 lb acting from A toward B and 60lb acting from A toward C on the frame.
(A): F = 44.7 lb, = 22.9°
(B): F = 62.9 lb, = 37.1°
(C): F = 72.1 lb, = 56.3°
(D): F = 80.3 lb, = 46.2°
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