Hinge problem: Why does the hinge get stuck

My Dell Inspiron 11-3147 fell on the floor and as a result of the drop, and one of the hinges will not rotalte fully any longer. I cannot close the laptop, neit Iher can I fold it like a tablet. That hinge will only rotate a little in both directions, then it gets stuck. I tried to force it a ittle, but it won't turn/rotate any further. I did not force it too much so that I won't break it. Does it have something inside of it that can cause it to get stuck? Some sort of mechanism?