consider an ideal spring that has an unstretched length with spring constant . the spring is attached to a mass that lies on a horizontal frictionless surface. the spring-mass system is compressed a distance from equilibrium and then released with an initial speed towards the equilibrium position. for all of these problems, write your answers in terms of x 0 for , l 0 for , v 0 for , , and . (part a) when the spring is stretched to its farthest position and the block comes momentarily to rest, how much potential energy is stored in the spring?
