I'm really struggling with this. Can you please help me solve this?

A woman performs leg extension exercises using her leg as a free weight. She currently holds the following posture shown below. We would like to know how much force her gluteal musculature needs to exert to hold her leg in place. Her gluteal musculature inserts on the femur at an angle of ) = 30 and at a distance del = 0.055 m from the axis of rotation of the hip. The mass of her thigh is estimated to be mthigh = 6.45 kg, and the mass of her leg is mleg = 3.2 kg. The total length of the thigh segment is measured to be Ithigh = 0.36 m, total length of the leg segment is measured to be leg = 0.4 m. The joint angle 0 = 450 is the angle between the thigh and to the left horizontal. Assume that the trunk is fixed and there is no translation of the leg's CM in the vertical or horizontal direction. a) Compute the location of the center of mass of the thigh and leg segments with respect to their proximal ends using Plaegenhof's et al. (1983) (Table 11-3 textbook fourth edition, or Table 12-3 textbook fifth edition). (2 pts.) b) What is the magnitude of the total gravitational torque Tgra due to the weights of the leg and thigh? (2 pts.) c) What is the magnitude of the total gluteal muscle force Fgl? (2 pts.) Ithigh