An object has a position given by$$r$=[2\mathrm{.}0$m$+(2\mathrm{.}00$m$/$s$)$t$]$i$^+[3\mathrm{.}0$m$(3\mathrm{.}00$m$/$s$2)$t$2]$j$^,$ where quantities are in SI units. What is the speed of the object at time$$t$=2\mathrm{.}00$s$?$ What is the magnitude of the acceleration of the object at time t$=2\mathrm{.}00$ s$?$