A weight of 42 N is attached to the free end of a light string wrapped around a pulley of radius 0.18 m and mass 3.48 kg. The pulley (a uniform disk) is free to rotate without friction in a vertical plane about the horizontal axis passing through its center. The weight is released 5.14 m above the floor. Determine the tension in the string. The acceleration of gravity is 9.8 m/s2.