1. The problem statement, all variables and given/known data http://imgur.com/Mwin7dB http://imgur.com/Mwin7dB 2. Relevant equations 3. The attempt at a solution This is a fairly simple problem. My issue is that I can't identify the second initial condition. The first one is simple. At t=0, the voltage on the capacitor is 10V. The second condition I feel should be related to the inductor. Perhaps to the current at 0 seconds. Not sure how to find out what the current through that inductor would be the moment the switch opens. Anyone lend a hand?