The spool of cable, originally at rest, has a mass of 200 kg and a radius of gyration of...

The spool of cable, originally at rest, has a mass of 200 kg and a radius of gyration of kG = 325 mm. if the spool rests on two small rollers A and B and a constant horizontal force of P = 400 N is applied to the end of the cable, determine the angular velocity of the spool when 8m of cable has been unwound. Neglect friction and the mass of the rollers and unwound cable.