1. The problem statement, all variables and given/known data 3. The attempt at a solution 7 Part(a) It can be seen that Eα > Emin, so ue is always bounded below Eα. 7 Part (b) It can be seen that for α = 1/2, Eα = Emin = -1/4. Thus for α < 1/2, the mass will start to drop. What puzzles me is how do you explain this using forces? Force acting on mass on table = T Force acting on mass below = mg - T The mass would slide down if mg > T but how do i express this in terms of α??