1. The problem statement, all variables and given/known data http://img132.imageshack.us/img132/8048/prob2r.jpg [Broken] 2. Relevant equations dy/dt = dx/dt * dy/dx 3. The attempt at a solution would dy/dx = 0? because the ladder is 11 m, the derivative of 11 is 0.. and then would dy/dt be the rate of the top of the ladder sliding down?