The elastic foundation of a heavy machine in Figure Q8 consists of elastic springs connected in series and in parallel. Each of the springs has stiffness coefficient k = 10000 N-m-1. The machine is of mass m = 1290 kg and it is pulled by a distance 0.05 m from its equilibrium position and thereafter released from rest, such that simple harmonic oscillations occur. Determine the maximum acceleration of the machine. Provide only the numerical value (in m-s) to two decimal places and do not include the units in the answer box. Partial credit is awarded for a reasonable approximation to the correct numerical answer. Figure Q8: Elastic foundation of a heavy machine. m k