Refer to Atwood's machine (Example 8.2).
(a) Assuming that the cord does not slip as it passes around the pulley, what is the relationship between the angular acceleration of the pulley (a) and the magnitude of the linear acceleration of the blocks (a)?
(b) What is the net torque on the pulley about its axis of rotation in terms of the tensions T1 and T2 in the left and right sides of the cord?
(c) Explain why the tensions cannot be equal if m 1 ≠ m2.