You push on a closed door of width x = 1.1 m, opening it and giving the door downward angular acceleration a = 0.5 rad/s2 5) What is the magnitude of the centripetal acceleration of the center of the door after 1.0 s? 6) What is the angular velocity of the door when it is perpendicular to the wall? 7) When is the door perpendicular to the wall