1. The problem statement, all variables and given/known data An green hoop with mass mh = 2.4 kg and radius Rh = 0.12 m hangs from a string that goes over a blue solid disk pulley with mass md = 2.4 kg and radius Rd = 0.11 m. The other end of the string is attached to a massless axel through the center of an orange sphere on a flat horizontal surface that rolls without slipping and has mass ms = 4.2 kg and radius Rs = 0.25 m. The system is released from rest. 1)What is magnitude of the linear acceleration of the hoop? 2. Relevant equations 3. The attempt at a solution I have no idea, would love someone to explain all the very elementary steps, we have never even looked at taking the mass of the pulley into account!