The figure consists of four forces. a. If F3 = 20 kN and 0 = 15°, determine the magnitude and direction of the resultant force. b. If the resultant is 70 kN directed upward to left at an angle of 75° from the horizontal, determine the magnitude and direction of F3 F,=50 kN ww F2=30 kN 35° 55° 6, F3 F= 25 kN

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