An object weighing $44\mathrm{.}1$N hangs from a vertical massless ideal spring when set in vertical motion the object obeys the equation y$($t$)=(6\mathrm{.}20$cm$)$cos$[(2\mathrm{.}74)$t$-1\mathrm{.}4].$ What are the max speed and max acceleration. What is spring constant. Find max kinetic energy. Is max potential energy greater than, less than, or equal too