A horizontal spring attached to a wall has a force constant of k=850 n/m. A block of mass m=1.0 kg is attached to the spring and rests on a frictionless, horizontal surface.
The block is pulled to a position xi=6.0 cm from equilibrium and released. Find the elastic potential energy stored in the spring when the block is 6.0 cm from equilibrium and when the block passes through equilibrium.
