An object dropped from rest rotates at a constant rate of 12 rad/s about a horizontal axis (parallel to the ground) as it falls. The total distance through which it falls is 14 m. (a) How long is the object in air? (b) How many revolutions has it completed by the end of its fall? (c) What is the angular acceleration of the object? Justify. (d) What is the linear acceleration of its center of mass? Justify