*21-64 The 10-ka disk spire about axle AD at a constant rate of m, = 250 rad/s, and # = W' Determine the mie of precestion of am On. Netlead the mas of arm (4, and AB, and the circular ring D. 21-45, When QA precesses al a constant rate of me = Snulys, when id - 90', determine the required spin of the TO ko diak (. Noplead the moreof arm (21, axle 18. and the circular ring D