point mass of 1 kg is attached to a massless string and free to rotate about a fixed point in circular motion. tially the radius is 3.50 m with an angular velocity Wini =2.70 rad/s . Draw a picture. Part A Find the initial moment of inertia of the point mass about the axis of rotation. O 0.271 kg * m? 2.45 kg * m? 12.3 kg * m 10.4 kg * m? PhotoGri O 23.3 kg * m Submit Request Answer Part B Find the magnitude of the initial angular momentum. Item 3 Find the magnitude of the initial angular momentum. Part D 40.0 kg * m2/s The tension of the string is increased to pull the mass in toward the center of the circular motion and reduce the adius to 1.75 m Draw a picture. 6.95 kg * m2/s The magnitude of the torque produced on the mass is, O 55.2 kg * m /s O not equal to zero O 25.5 kg * m/s O equal to zero. 33.1 kg * m /s Submit Request Answer Submit Request Answer Part E Find the final angular velocity w final. Part C O 22.7 rad/s Find the tension on the string. 15.1 rad/s 10.8 rad/s 43.4 N 1.98 rad/s O 8.16 N 8.32 rad/s