The mass m1 is dropped from rest a distance h onto the mass m2, which is initially

Question:

The mass m1 is dropped from rest a distance h onto the mass m2, which is initially resting on the spring support (Figure). Assume that the impact is inelastic so that mi sticks to m2. Calculate the maximum spring deflection caused by the impact. The given values are m1 = 0.5 kg, m2 = 4 kg,
k = 400 N/m, and h = 2m.