1. The problem statement, all variables and given/known data A lamp hangs vertically from a cord in a descending elevator that decelerates at 1.6 m/s2. (a) If the tension in the cord is 92 N, what is the lamp's mass? (b) What is the cord's tension when the elevator ascends with an upward acceleration of 1.6 m/s2? 2. Relevant equations F=ma 3. The attempt at a solution a) using M for mass, so as not to confuse it with 'm' for meters F(net)=M*a, T-F(gravity) = M*a 92N - M*(9.8 * m/s^2) = M*(-1.6 * m/s^2) 9.8*M - 1.6 M = 92 kg M = 11 kg b) T - (11 kg)*(9.8 m/s^2) = (11 kg)*(1.6 m/s^2) T = 18N + 110N T = 128N Both of my answers are wrong. Where am I going wrong in my thought process?