The system parameters are m₁ = 364.4 kg, k₂ = 74.9 kN/m, and m₂ = 31.2 kg. The suspension stiffness, k₁, is made up of two springs with the same spring stiffness, k, which is given in kN/m and is the missing number of the matrix shown in Figure 2 which follows a simple sequence.

Figure 2