1. The problem statement, all variables and given/known data A uniform chain of length L lies on a smooth table with part of its length b initially hanging over the edge. Show that the time required for it to fall off the table when released from rest is given by t = √(L/g) arccosh (L/b) 2. Relevant equations http://img10.imageshack.us/img10/2203/integral.png [Broken] 3. The attempt at a solution Not sure how to begin, since the acceleration of the chain keeps increasing as b increases. b is in turn related to the acceleration of the chain.