A pulley with mass 1.25 kg and radius 0.2 m is shown in the diagram. You pull on the massless string WOUI'Id around pulley A with a force 15 N. The pulley begins to rotate from rest. Pulley A experiences the tension in its string for 7' s. The moment of inertia for the pulley is |=1f2 mR\"2. Figure A What is the value of the angular acceleration oi Pulley A after it is released from rest? What is the value of the angular velocity of Pulley A after it is released from rest? O (a) WA = 1050 rad/s O (b) WA = 168 rad/s O (c) WA = 840 rad/s O (d) WA = 420 rad/s x x 0%