(Solved): The T-shaped body rotates about a horizontal axis through point 0 . At the instant represented, its ...

The T-shaped body rotates about a horizontal axis through point 0 . At the instant represented, its angular velocity is \( \omega=3 \mathrm{rad} / \mathrm{sec} \) and its angular acceleration is \( \alpha=14 \) rad \( / \sec ^{2} \) in the directions indicated. Determine the velocity and acceleration of (a) polnt \( A \) and (b) point B. Express your results in terms of components along the \( n \) - and \( t \)-axes shown.