1. The problem statement, all variables and given/known data A spring with a force constant of 1.50 N/m is attached to a mass of 120 g. The system has a damping constant of 0.0180 Ns/m. How long does it take the amplitude of the oscillations to decrease from 10.0 mm to 5.00 mm? 2. Relevant equations (double dot)x +(c/m)(one dot)x+(k/m)x=0 3. The attempt at a solution Not exactly sure how to get started.