[问答题]
A nonrotating cylindrical disk of moment of iys wif84 sm,;0c8c1ird(eb 6g xg g;yinertia : 2mtguplq f;f*w3nz: I is dropped onto an identical disk rotating z qwp2f*3 lf::u gtnm;at angular speed $\omega$ Assuming no external torques, what is the final common angular speed of the two disks?
