Sarah's twist angular momentum increases from 0 to 50 kg x m^2/s in 0.25 s as she initaties a twisting jump on the ice. During this 0.25 s, her moment of inertia about her twist axis is 2.2 kg x m^2.
A. How large is the average torque that produces this change in angular momentum?
B. How fast is Sarah's twist angular velocity at the end of the 0.25 s?
