A mass of 0.?5 kg stretches a spring 0.07 m. The mass is in a medium that exerts a viscous no resistance of 38 N when the mass has a velocity of4 . The viscous resistance is proportional to s the speed of the object. Suppose the object is displaced an additional 0.04 m and released. Find an function to express the object's displacement from the spring's equilibrium position, in m m after t seconds. Let positive displacements indicate a stretched spring, and use 9.8 2 as the s acceleration due to gravity. ui't) =