Enlighten me please with full solution. Thanks

Q2. For the mass-spring system shown in Figure 2, the distances AB and BC between the hinges A, B and C are equal (i.. AB - BC). The mass of the wheels of the trolley, link AC and springs ki and ka are very small and negligible. It is assumed that at the initially static equilibrium of the system, link AC is in vertical position and both springs are neither stretched nor compressed. Determine the natural frequency of the system A I k2 B m HW CO2 co Figure 2