A solid cylindrical pulley has a radius of 8 cm and a mass of 220 grams. A string of negligible mass is wrapped around the circumference of the pulley wheel and a 50-gram mass is attached to the free end of the string and allowed to hang freely. The system is released from rest and the box descends 1.4 meters.
(a) What is the linear speed of the box after this descent?
(b) What is the tension In the vertical length of the string at that moment?