1. The problem statement, all variables and given/known data A person stands on a bathroom scale in a motionless elevator. When the elevator begins to move, the scale briefly reads only 0.66 of the person's regular weight. Calculate the acceleration of the elevator, and find the direction of acceleration. 2. Relevant equations So I know you have to use sumF = MA to solve this problem. 3. The attempt at a solution I drew a freebody diagram. ^ | | Fn . | | .66mg V And I got the formula N - .66mg = .66ma. This where I get stuck. I don't know what to do next. As for the second part of the question, I know that the elevator is moving downward because of the decrease in mass.