1. The problem statement, all variables and given/known data Hello, I got to solve the following second order transient circuit. Obviously, what I need to do first is to find if its critically damped, underdamped, or overdamped. The circuit can be found in the attachment. 2. Relevant equations Depends, weather the circuit is critically damped, underdamped, or overdamped. 3. The attempt at a solution So, what I do is to remove the voltage source by a short and the current source by an open circuit, then assume the switch will be opened at t>0, so there will be an open circuit where the switch was. Then try to find if its a series RLC or a parallel RLC, exactly, how can I do that? I need to know if its a series RLC or parallel RLC to determine weather the circuit is critically damped, underdamped, or overdamped. Any help would be gladly appreciated!