06.49: Three identical
p *ll e(dfnj/ fn(v9o4Hookian springs of spring constant k are connected as shown to a mass M in equilibrium. The horizontal platform shown between the springs and the spring
nldvj *4 fl(9ef /(npos themselves have no mass. If the mass M is slightly displaced vertically, the mass exhibits simple harmonic oscillation. Assume that the horizontal platform does not rotate during the oscillations.What is the period of the oscillation?