(ΣMG = IG α) Two weights W1 and W2 of 8 kN and 5 kN are attached at the ends of a flexible cable. The cable passes over a pulley of 100 cm diameter. The weight of the pulley is 600 N with a radius of gyration of 50 cm about its axis of rotation. Find the torque which must be applied to the pulley to raise the 8 kN weight with an acceleration of 1.5 m/s^2. Neglect friction in the pulley bearing.