1. The problem statement, all variables and given/known data A yo-yo has mass 0.8 kg and rotational inertia 0.12 kg m2 measured about an axis perpendicular to the screen and passing through its center of mass. A light thin string is wrapped around the central part of the yo-yo that has radius 0.03 m. The string is attached to the ceiling as shown. The yo-yo is released from rest and begins to descend as the string unwraps. Use conservation of energy to find the linear speed of the yo-yo by the time it descended a distance 0.8 m. Use g = 9.8 m/s2. 2. Relevant equations 3. The attempt at a solution Used conservation of energy :mgh=.5mv^2+.5Iw. w=v^2/r^2. v=3.74. What am I doing wrong?