The figure shows atwood's machine, in which two containers are connected by a cord (of negligible mass) passing over a frictionless pulley (also of negligible mass). at time t = 0 container 1 has m1 and container 2 has mass m2 with m1 < m2, but container 1 is losing mass (through a leak) at the constant rate r. (a) at what rate is the magnitude of acceleration of the containers changing at time t? (b) when will container 2 reach maximum acceleration? express your answers in terms of the variables given and g