A block of mass 2 kg is attached with two identical springs of spring constant 20 N/m each. The block is placed on a frictionless surface and the ends of the springs are attached to rigid supports (see figure). When the mass is displaced from its equilibrium position. It executes a simple harmonic motion. The time period of oscillations is $\frac{\mathrm{\pi }}{\sqrt{\mathrm{x}}}$ in SI units. The value of x is ___________