A Swing is suspended from a wall and ceiling. Rod AB and rod BC have diameters of 25 mm and 15 mm, respectively. A: Determine the angle q in the scheme for a 60 kg person so that the average normal stress in AB is equal to 0.2 * the average normal stress in BC. B: Determine the average normal stress in AB under a 60 kg person. C: If the average normal stress in both rods is not allowed to exceed 10 MPa, determine the largest mass that the swing can support if 0=50. J30 B Swing