Goal: Problem solving
disk, having radius R and mass M, is free to rotate about an axis
through its center. A massless string is wound around disk and attached
to mass m. The moment of inertia for a disk given by is
1/2(MR2). If M=4m what is the acceleration of mass m?
- None of the above
- Cannot be determined
(5) Students answering #2 are likely making the common mistake of
thinking that the tension in the string is mg.