The disk is originally rotating at an initial angular velocity $0=1$ rad$/$s$,$ If it is subjected to a constant angular acceleration $=10$rad$/$s$^2,$ determine i$)$ the tangential component of linear acceleration at A$,($aA$)$t $($m$/$s$2)$ and ii$)$ the normal component of linear acceleration at A$,($aA$)$t $($m$/$s$2)$ both at the instant of t $=3$ seconds