5-7. Answer the questions using the information given below. A continuous and oriented fiber-reinforced composite is produced with 30% by volume aramid fiber and 70% by volume polycarbonate matrix. The modulus of elasticity of aramid fibers and polycarbonate matrix are 131 GPa and 2.4 GPa, respectively. The cross-sectional area of the composite is 320 mm2. The composite is subjected to a load of 44,500 N in the fiber direction. 5. What is the fiber/matrix load ratio? a) 23.4 b) 15.6 c) 38.4 d) 10.2 e) 30.7 6. Which of the following is the charge carried by the matrix phase? a) 2,500 N b) 1,824 N c) 15,200 N d) 32,880 N e) 5,750 N 7. In which option is the magnitude of the stress acting on the fiber phase given correctly? a) 80 MPa b) 10 MPa c) 445 MPa d) 250 MPa e) 340 MPa