A square wire loop with a side length of 5.0 cm and a mass of 2.0 g carries a current of 1.5 A. The loop is placed in a uniform magnetic field of 0.40 T, with the plane of the loop making an angle of 60° with the field. If the loop is free to rotate about an axis along one of its sides that is perpendicular to the field, what is the magnitude of the loop’s initial angular acceleration?