A mass-spring system consists of a m = 1.76 kg block connected to a spring of spring constant, k = 283 N/m and resting on a frictionless surface. The spring not stretched with the block resting at its equilibrium position. At t = 0 s, the block is instantaneously smacked from the left so that it moves to the right at a distance A = 0.240 m from its equilibrium position before rebounding. Determine an expression for the kinetic energy of the spring as a function of v.