Determine, using complex numbers, the magnitude and direction of the resultant of the coplanar forces given below, which are acting at a point. Force A , 5N acting horizontally, Force B , 9N acting at an angle of 1350 to force A, Force C , 12N acting at an angle of 2400 to force A.
Resultant force
Hence, the magnitude of the force that has the same effect as the three forces acting separately is: 8.394 N and its direction is 208.678° to the horizontal (i.e. from Force A).
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