Folding frame simulation

Hello all,

I wonder if you can help me.

Im new to solidworks.

Im trying to simulate a hinged assembly (two rectangles hingedtogether at the top) folding away from one another when placed on asurface with ONLY gravity applied to the system..

I want the assembly to "fold flat" (like a person doing the splits)against the surface when simulated.

Can anyone help here?

Thanks

LennySolidworksFlow Simulation