1. The problem statement, all variables and given/known data A 1.6kg mass is suspended from a spring inside a stationary elevator. The spring stretches 12cm. The elevator now accelerates upwards, and the spring extends a further 12cm. What is the elevator's acceleration? 2. Relevant equations Fy= may Ue= 1/2 (kx2) 3. The attempt at a solution I'm just not sure on the best way to start this question.