Acceleration of pulley system physics problem

[mvpshaq32]

Homework Statement

In the figure, find an expression for the acceleration of m₁ (assume that the table is frictionless).

Homework Equations

The Attempt at a Solution

That picture of the second mass is stumping me because I have no idea what the heck is going on. It seems as if the second mass is fixed, but I honestly have no clue.

 

[housemartin]

What are the forces acting on m1, on m2?