Constant movement in a side-scroller

Hey, I am making a "infinite runner" type of a game. In those type of games usually player entity is staying on a single plane/line and world movement is simulated by world moving around player in a single direction. How would I go about properly simulating physics in such case?
I tried to fake it with friction between ground and all dynamic entities but it seems even with friction set to 1 objects do not match their velocities eventually as can be seen on a video below:

Is there any way to move every dynamic object in given direction by some increment every frame?