1. A stationary pulley carries a rope,one end of which supports a ladder with a man and the other a counter weight mass M.The man of mass 'm' climbs up a distance "L" wrt the ladder and then stops.The displacement of CM of the system is? 2. Relevant equations How do i approach this question 3. The attempt at a solution As the man moves up,the mass M moves up too..so ml+ML/m+M ,something like this..?