A horizontal force of 250 N is applied to a cable that is wrapped around the inner drum (rdius of 150mm) of the compound pulley being used to lift block B attached to the outer drum (radius of 250mm). The 20 kg pulley has a radius of gyration of 160 mm. if B has a mass of 10 kg, determine the angular acceleration oof the pulley and the tesion in the cable connected to B.