The man is walking with speed to the right when he trips over a small floor discontinu...

The man is walking with speed to the right when he trips over a small floor discontinuity. Estimate his angular velocity ω just after the impact. His mass is 76 kg with center-of-mass height and his mass moment of inertia about the ankle joint O is where all are properties of the portion of his body above O; i.e., both the mass and moment of inertia do not include the foot.