Solve the problem.Two forces, F1 and F2, of magnitude 60 and 70 pounds, respectively, act on an object. The direction of F1 is  and the direction of F2 is . Find the magnitude and the direction angle of the resultant force. Express the direction angle to the nearest tenth of a degree.

A.  = 92.20; ? = 80°
B.  = 94.63; ? = 87.2°
C.  = 92.20; ? = 89.4°
D.  = 99.37; ? = 93.7°


Answer: D

Mathematics

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