Problem 4: Spring back into PHYS 2

Three masses are suspended vertically by a series of identical springs where mass 1 is at the

top and mass 3 is at the bottom. If g = 9.81 m/s², m₁ = 4 kg, m₂ = 3.25 kg, m3 =

= 2 kg,

and the k's 15 kg/s², solve for the displacements of a.