Mass m$1=14\mathrm{.}3$ kg is on a horizontal surface. Mass m$2=7\mathrm{.}47$ kg hangs freely on a rope which is attached to the first mass. The coefficient of static friction between m$1$ and the horizontal surface is s $=0\mathrm{.}569,$ while the coefficient of kinetic friction is k $=0\mathrm{.}138.$

If the system is in motion with m$1$ moving to the left, then what will be the magnitude of the system's acceleration? Consider the pulley to be massless and frictionless.

If the system is in motion with m$1$ moving to the right, then what will be the magnitude of the system's acceleration?