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3. If F, = 30 lb and F; = 40 ID, determine the angles 3 and a so that the resultant force is directed along

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3. If F, = 30 lb and F; = 40 ID, determine the angles 3 and a so that the resultant force is directed along the positive x axis 8: has a magnitude of FR: 60 lb. (20 pts) 4. Determine the magnitude 8. direction 9 of F,ql so that the resultant force is directed along the positive x axis 3: has a magnitude of 1250 N. (20 pts)

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