A large fake cookie sliding on a horizontal surface is attached toone end of a horizontal spring with springconstant k =440 N/m; the other end of the spring is fixed in place. Thecookie has a kinetic energy of 21.0 J as it passes through thespring's equilibrium position. As the cookie slides, a frictionalforce of magnitude 11.0 N acts on it.
(a) How far will the cookie slide from the equilibrium position beforecoming momentarily to rest?
(b) Whatwill be the kinetic energy of the cookie as it slides back throughthe equilibrium position?