A carnival ride starts at rest and is accelerated from an initial angle of zero to a final angle of 6.3 rad by a counterclockwise angular acceleration of 2.0 rad What is the angular velocity at 6.3 rad? Answer using a coordinate system where counterclockwise is positive. Round answer to two significant digits. O w=6.0 rad/s w=5.5 rad/s O w=5.0 rad/s O w=4.5 rad/s