1. The problem statement, all variables and given/known data Answer: C Note: Sorry admins for the picture, needed to include the diagram though. 2. Relevant equations ∑[itex]\tau[/itex] = I[itex]\alpha[/itex] ∑F = ma a = [itex]\alpha[/itex]r 3. The attempt at a solution The torques must be balanced (is this reasoning already wrong?), thus, F*R1 = F_T*R2 F_T = FR1/R2 The only force acting on the block is the F_T, thus the acceleration is FR1/mR2 Why are the torques not balanced in this case? If not, how do I exactly relate the moment of inertia of the entire disk to fit into the entire problem? Thank you in advance for the help!