real world physics 2D

Hi I am messing around with the editor program and have some simple gravity working with mass etc, movements etc. The problem I am having is when I drop my block, it falls. This is good. It hits an object, also a smaller block, less than 1/2 in fact. The player block when collides, just sits on the smaller stationary block and thus the player block is now stationary too. I wouldn't expect this as it is twice the width and thought (in the real world) would have rolled off.


I remember seeing a post from Michael Perry regarding a new physics system. Would this help if I required my game to act more "real"?