Question

Two disks of identical mass but dif- ferent radii (r and 21) are spinning on frictionless bearings at the same angular speed w, but in opposite directions (Fig- ure 10-46). The two disks are brought slowly together. The re- sulting frictional force between the surfaces eventually brings them to a common angular velocity. What is the magnitude of that final angular velocity in terms of w.? 00 00

Answer 1

ton ( + 6)zew - (- 6) conyewe tofauti taya) = (he) - conc u) U 1 {my=73 ty = 17