1. The problem statement, all variables and given/known data Many undamped mechanical vibrations are described by the Differential Equation x′′ + Kx = 0 that describes a position x(t) with t being time and K a positive constant. a) What are the MKS units for K? b) Introduce s=t/T for some characteristic time T to be determined (i.e. scale time) to make the equation for x(s) as simple as possible. 3. The attempt at a solution Im not sure where to start with this problem. Any help would be greatly appreciated. Im also having some problems understanding scaling (non-dimentionalization) so If some one could help with that to it would be great.