The drawing shows three situations in which a block is attached toa spring. The position labeled “0 m” represents theunstrained position of the spring. The block is moved from aninitial position x0 to a final positionxf, the magnitude of the displacement beingdenoted by the symbol s. Suppose the spring has a springconstant of k = 52 N/m. Using the data provided in thedrawing, determine the total work done by the restoring force of the spring for each situation. In the case of zero put your resultas "+0".