09.42: A uniform, solid disk with mass M and radius R is rotati
xrxju4jl d4y9: t b8c4ng on a fixed, frictionless platform with constant angular speed ω0 about a fixed axis through its center. A second uniform solid disk of mass 2M and radius R/2 is placed from rest directly on top of the first dis
ut yrb44 j49xd:xj8l ck so that the centers of the disks line up. When equilibrium is established, the disks are spinning at the same rate. What is the angular speed of the disks at equilibrium?