A 8.6 kg mass is connected to a spring of stiffness 289 N/m. The mass is pulled back1.2 m from equilibrium and then released from rest. At the equilibrium point, the first mass has a completely inelastic collision with a 12 kg mass that was initially at rest.After the two stick together they undergo simple harmonic motion. Calculate the amplitude of the resulting SHM, in m.

Fig: 1