The mass of block A is 4 kg, the mass of block B is 3 kg, and the mass of the pulley is 3 kg. The pulley and can be modelled as a uniformly dense solid cylinder rotating around an axis through its center. The rope passes over the pulley without slipping and θ = 30°. As block A slides up the ramp energy is dissipated at a rate of 5 J/m due to kinetic friction. What is the magnitude of the acceleration of block A (in m/s2)?