a solid disk of mass m, radius r and rotational inertia i is free to rotate about a fixed frictionless axis that is perpendicular to the disk through its center, as shown above. a force of constant direction and constant magnitude f is exerted on the disk. question if the disk is moving clockwise with an angular speed of 5.0rads with angular acceleration of magnitude 1.3rads 2 . what is the angular speed of the disk three seconds later?