Please solve these question in details and fully explaination. Thank you so much in advance.

If the resultant force FR of the two forces acting on the log is to be directed along the positive x axis and have a magnitude of 12 kN. Consider a = 31 3) Determine the magnitude of angle 9 of the cable (in degrees) b) Determine the magnitude of FA in kilonewtons (kN) such that the force F8 in the cable is minimum. 0) Determine the magnitude of F8 in kilonewton (kN), such that the force F8 in the cable is minimum